Updating drivers for usb ports. USB ports do not work. Software solution methods

There are different types malfunctions associated with the operation of the front USB ports on a personal computer. Sometimes a problem occurs when all the front ports do not function. In other cases, when only one does not work or works poorly. We will try to talk about each of the situations when they do not work usb ports.

Simultaneous failure of all front ports

First, it is necessary to clarify that the front ports differ from the rear ones in that they are connected to the motherboard through a special cable, while the latter are part motherboard.

The first probable reason why the USB ports on the front panel of the computer often do not work is that the USB port controller is disabled. It is located on the motherboard. You can enable it using BIOS menu. You can get here by restarting your computer and pressing one of the keys. This is usually the F2 or Delete key.

In the BIOS you will need to go to the Integrated Peripherals section. There is a USB Configuration menu here. You need to find out what position the USBController is in. If it says Disabled next to it, it means the controller is not working. Switch to the Enabled position. Save the changes and restart the computer.

You can check all USB ports by going to Device Manager. It contains the section “Serial Bus Controllers” USB connectors" Some of the items may be marked yellow exclamation mark. Why? This indicates a malfunction or bad work one of the ports. Detailed information is in context menu, called by right-clicking on the device name. It is worth deleting all controllers in the “Manager” and then restarting the computer. Windows OS is capable of restoring all controllers at boot time on its own.

operating room Windows system sometimes disables one or all front ports specifically to save power. We can manage our own nutrition, so our task is to at this stage– prohibit the system from doing this. We will again need the “Device Manager” and the “Universal USB Bus Controller”. Next, click on the line “USB Root Hub” with the left button. Here we go to the “Power Management” menu. Uncheck the “Allow shutdown to save energy” checkbox. We do this procedure with each USB.

There is another reason why they do not work, it lies in failures or malfunction Windows systems. Most often this happens if constant updates are disabled on the operating system. It is highly desirable to restore lost system files or reinstall Windows completely. Problems with the front ports arise due to incorrect OS assembly. Therefore, it is important to use only proven Windows builds.

What to do if only one front USB input does not work

One of possible reasons The reason why this happens is that the cable connecting the front ports to the motherboard. Then the problem with the operation of one of the ports is solved by replacing this cable yourself or with the help of specialists.

The malfunction may occur if we connect several devices to the front USB ports, for example, at once external drive and a phone or something else. There may not be enough electricity for one of them. This situation leads to both port shutdown and intermittent operation. This happens because the front port interface may not have an additional power source, that is, an adapter. Sometimes we don't notice that the front USB ports are faulty. Problems arise only when the main adapter is not sufficient for our immediate needs. And they can be solved by purchasing a USB hub with an additional power source. After replacement, we are able to connect any peripheral devices.

Before starting any of the operations listed in the article to correct deficiencies, you need to check the contacts connecting the cable to the motherboard. A lot of problems with front USB ports can be solved this way.

Whether you work on a computer or play on it - in any case, you want the device to work smoothly. Often incorrect operation personal computer explained by the fact that it is used outdated drivers. Let's figure out how to update them and ensure convenient use of your computer!

A little about drivers

Drivers are special software that helps the operating system recognize the “language” of connected or built-in devices.

Accordingly, if this ability to recognize is impaired, problems arise. For example, the speaker stops working or computer mouse, or programs close automatically with an error code.

When to update drivers

It is logical that during normal computer operation there is no need to perform any actions with the drivers. But if there are interruptions in work peripheral devices, you can already think about updating or reinstalling drivers.

For example:

if the mouse or keyboard stops working;
if the sound is gone;
if the webcam does not work;
if programs are closed;
if screen expansion has deteriorated;
in other cases when the computer is malfunctioning.

Replacing drivers with newer ones is not a panacea. It is not always possible to solve the problem this way, because there are many other causes of problems.

What drivers affect computer performance?

Of course, all drivers affect the functioning of the computer and the devices connected to it. Mouse drivers ensure its normal operation, USB drivers-ports allow the operating system to recognize the connected wire.

The computer itself continues to work regardless of whether the drivers work.

There are also such drivers, without normal operation which the computer simply cannot function. Here is their list:

drivers system devices: processor, various buses and controllers;
drivers for the video card responsible for image output;
drivers for the network adapter responsible for connecting to the Internet (without this device, the computer will not be able to download patches from the developer’s servers).

Other drivers have less impact on the operation of the computer, although they are also significant.

Where to find drivers for Windows 10

The new version of the operating system has an “Update Center” installed. If automatic updating is enabled software, it downloads all new programs from the internal servers of the system.

If you decide to download drivers yourself, refer to the websites of the manufacturers of the computer itself or to the resources of device developers for which you are looking for drivers.

There are also separate resources that host drivers for Windows 10. For example, this is the site DriverPack Solution(we talk about it in more detail in the following sections).

Both methods are absolutely safe. If you plan to download drivers from third-party sites, be careful: such software can introduce a virus onto your computer.

Automatic and manual driver updates

There are several ways to update drivers. As stated above, they are usually updated automatically. But you can also use the “manual” method if Update Center does not find suitable updates. Let's talk about both methods.

Automatic driver updates

The system automatically updates all software independently. However, new drivers are not always installed on the computer immediately, because for correct operation The device requires a reboot after updating.

The system automatically sets activity periods: computer use time and restart periods convenient for the owner. It is possible to change these settings, as well as start checking for updates and installing them instantly.

Open the Start menu and click on the gear button.
Go to the "Update and Security" section.
Open the "Windows Update" tab and click on the "Check for updates" button to start searching for new drivers, software updates and operating system updates. After the system checks for updates, they will begin downloading and installing. After installation, the system will prompt you to restart your computer.
If you click on the “Change activity period” item, you can set the time during which no activity will occur. automatic check updates and downloading them.
By clicking on the “Change activity period” item, you can set the time at which you usually use the computer to avoid unwanted downloads of updates while working
If you click on the "Restart Options" item, you can select a time convenient to restart your computer. The time can only be changed if there are updates waiting to be rebooted.
If you are going to run the update yourself, first go to " Additional options" and make sure that the item "When updating Windows, provide updates to others Microsoft products» is marked with a tick. Otherwise, only operating system updates will be downloaded.

Video: in Windows 10

How to disable automatic updates

Some users prefer to use outdated drivers for one reason or another, and therefore they are uncomfortable with Update Center downloading and installing them automatically. In that case automatic update can be disabled.

How to disable automatic updates

Right-click on the Start menu and select System.
Find “Advanced system settings” in the window that opens and click on it.
Go to the "Hardware" tab.
Click on “Device Installation Options”, check the “None” option and save your changes. After this, updates will not be downloaded automatically.

How to disable Windows 10 Update

Press the Win+R key combination to open the Run utility, enter services.msc and click OK.
In the window that opens, find “Windows Update” and open it.
Click Stop, select the startup type as Disabled, and click OK.

Manually updating drivers

If Update Center does not find new drivers, you can try updating them yourself.

Automatic search using Device Manager

Run the built-in search. To do this, open the Start menu and simply start typing.
Type "Device Manager" and open it.
Expand the group of the device whose driver you want to install.
Right-click on the device you are interested in and select "Update Drivers...".
In the window that opens, select “ Automatic search..." A search for the driver will start, after which you can see the result.

Manual update in Device Manager

Updating drivers using utilities

In addition to the previous update methods, you can use another one: updating drivers via specialized programs. Once installed on your computer, the software analyzes the device. It also finds suitable drivers in the system and installs them on the computer.

Rating of utilities for updating drivers

Let's consider the most popular programs of this type.

DriverPack Solution

DriverPack Solution is considered one of the best. The RBC newspaper even wrote about her:

The utility analyzes the user's computer and installs the necessary drivers on the computer, which allows solving two problems: firstly, to speed up the process of setting up the computer (which is especially important if there are several dozen computers in the system), and secondly, to improve the quality of its operation.

RBC newspaper

DriverPack Solution is absolutely free. It matches the parameters of any device and has a huge database of drivers for all computer models. The program scans your computer and updates drivers very quickly. The user is required to press just a couple of buttons. It has already been said that you can also download the necessary drivers on the program’s website.

The security of the program and installed drivers can be checked with antivirus programs.

Driver Booster

This program, like the previous one, works quite quickly, analyzing data and offering to install latest versions drivers.

There are paid and free versions. The second one is suitable for simple update drivers, but installation occurs in it one by one. Paid version offers to install all updates automatically. In addition, the version has additional features: faster driver downloads, increased device performance, backup of old drivers and others.

If you just want to update any driver, this is perfect for you. free version, and if you want to constantly manage devices, you can purchase a paid one.

Driver Genius

This program provides full control drivers. In addition to updating, it also allows you to remove drivers, view device information and create backups drivers, saving them as archives.

The downside of the program is that it is paid. If you need to perform actions with drivers several times, use trial version given for thirty days.

Snappy Driver Installer

The application was created by the developers of DriverPack Solution, but is slightly different from this program. It directly scans and searches for drivers. Before installation, the program creates a system restore point.

The application is completely free and works in several languages, including Russian and Ukrainian.

Slim Drivers

The program works quite quickly: the scan result is displayed within a couple of minutes. The positive side of the program is that sometimes there are drivers that another program could not find.

Installing a driver with an exe extension

When downloading software from device developer sites, we often receive a file with exe extension. The exe extension indicates that the downloaded file is executable.. There is no need to specify the path to it through the device manager: just run the file, accept the agreement and restart the computer.

As an example, let's look at how to install a driver for a graphics tablet.

Download the driver from the manufacturer's website. It is important that not only the operating system matches, but also its bit capacity.
Run the downloaded file to begin preparing for installation.
Agree with license agreement. It is advisable to read the agreement before accepting it.
Then restart your computer.

Software update for Windows 10

Sometimes it happens that when upgrading to Windows versions 10 optimized for the new one are not installed on the computer operating system drivers, and you have to install them yourself.

Before upgrading to Windows 10, make sure your computer meets the system requirements:

processor frequency - minimum 1 GHz;
RAM - 1 GB for a 32-bit system and 2 GB for a 64-bit system;
hard drive - 16 GB or 20 GB for 32- and 64-bit systems, respectively;
video adapter DirectX versions no lower than 9 with WDDM 1.0 driver;
display - 800 x 600 pixels;
installed operating system Windows 7 or Windows 8.1.

If your computer meets all the requirements, but after switching to a new operating system some drivers are not automatically updated, the first thing to do is contact the Update Center.

Not all updates can be installed immediately when upgrading to version 10, and it is possible that the system simply did not have time to download them.

Graphics Drivers

First of all, try to find suitable drivers on the manufacturer’s website. If you were unable to do this, you will need to check with the video card manufacturer. To do this, go to Device Manager and expand the “Video Adapters” category. If the video adapter driver is missing, you can find out information about it by expanding the “Unknown/unidentified devices” category.

In our case it is Intel. Also, AMD and Nvidia are often found. In all three cases, it is very easy to download the installation file by going to the manufacturer’s website in the “Support” section and selecting the desired version.

When installing Nvidia drivers you will be asked to install a special program - GeForce Experience, which allows you to further monitor the performance of the drivers. AMD also offers a similar program.

Sound card drivers

Update sound drivers This will be necessary if problems with sound appear after updating the operating system. As in the previous case, first try to find all the necessary drivers on the computer manufacturer's website. If there are none, go to device manager and check the manufacturer sound card there (in the category “Sound, gaming and video devices”). Usually it's Realtek or Intel.

In the case of Realtek, on the website, select the Downloads section, open the item High Definition Audio Codecs, agree to the terms, find the chapter corresponding to the operating system, and opposite it click the Global button. After this, the driver download will begin.

Download in a similar way Intel driver. The website of this manufacturer has a very clear Russian interface.

Mouse and Keyboard Drivers

First of all, of course, check with the manufacturer. The company logo is usually indicated on computer mice, and on keyboards. Go to the manufacturer's website and download the necessary drivers.

For example, to install Logitech drivers on the company’s website, you will need to open the “Support” section in top menu and select the desired product from the list. Photographs are provided for each product, so you can identify yours by appearance.

Under the desired device, click the “Details” button, and in the list that opens, find the “Files to download” item. Next, you will need to indicate your operating system and click on the “Download” button. A file with the .exe extension will be downloaded to your computer.

Since manufacturers computer mice and there are quite a lot of keyboards, it is impossible to describe the process of installing drivers for each separate device. But in general, driver installation occurs exactly as shown in the example of a Logitech device.

USB Drivers

IN in this case The easiest way would be to either find drivers on the computer manufacturer's website or install a driver update program. There are practically no manufacturers of USB ports as such, so finding the appropriate driver on your own will be quite difficult. As a last resort, you can search for the driver by name by checking it in the device manager (section “USB controllers”), but it’s easier to entrust everything to special programs.

Network adapter drivers

If, after upgrading to version 10 of Windows, your Internet does not work, it will be almost impossible to update the network adapter drivers on your computer. You will have to look for another working device, download the driver file for it and use storage devices (flash cards or disks) to transfer it to the computer.

Similar to the previous cases, you can find drivers both on the laptop manufacturer’s website and on the network card manufacturer’s website.

You can find out the manufacturer of the network card through the device manager, in the category “ Network adapters" Most often the manufacturer is Realtek. There may also be Intel, 3Com and others. Manufacturers network cards quite a lot. In addition, some computer manufacturers, such as ASUS and HP, install their own adapters.

Monitor Drivers

It is best to download drivers from monitor manufacturer websites. Installation instructions are also usually indicated there, although almost all manufacturers' drivers are installed by running the exe file.

If you do not know the model of your monitor and it is not indicated on the equipment itself (usually there is a sticker on the back of the case), you can check the model through the computer. For this there are special programs, providing all the information about the computer and devices.

In addition, you can find required characteristics on your own on your computer:

IN open window All information about external connected devices, including the monitor, is displayed. From this section you can also go to the device manager, where the device manufacturer is also indicated.

Printer drivers

Manufacturers of printing and reading devices (printers, scanners, copiers) usually include a disk with drivers in the equipment package. If there is one, check whether the driver is optimized for the new operating system. If not, go to the manufacturer's website and download updated drivers there.

Update drivers for other devices

The update principle is the same for drivers of all peripheral devices.

Let's remember the procedure:

Check the manufacturer via computer settings or device manager;
download drivers from its website or from the computer manufacturer’s website;
install them by running a file with the exe extension or specifying the path to them through the device manager.

All this work can be done by one of those driver update programs that we talked about above. Or any similar one.

Video: what drivers are needed for a laptop after installing Windows 10

If you cannot find drivers for Windows 10 for any of your devices, try installing drivers for Windows 8: they should work correctly on the new operating system.

Driver update problems

It happens that drivers stop updating. Or after updating them, the computer begins to work worse or some functions become inoperative. Let's look at the main problems associated with updating drivers and how to fix them.

Please report any errors related to the operating system to technical support. This will allow developers to capture problems and fix them, making your computer more enjoyable to use.

Why is the driver not updated?

Microsoft offers the following solution to the problem:

check if the computer is connected to the Internet;
if the problem is with the automatic driver update, try waiting 5 minutes and install the driver manually;
Try to solve the problem using the troubleshooter, which can be accessed through Windows Update.

Also try the following:

make sure that auto-update is enabled on your computer (in the “Disabling auto-update” section of our article, this procedure is described in detail, only the checkbox should be next to “Yes” (“Allow automatic update”);
try using several update methods: through special programs and manually;
try reinstalling the driver;
During the update, try disabling or completely removing the antivirus;
check whether there is enough space on your hard drive to install drivers (their “weight” can be found on the manufacturer’s website);
Finally, check if the driver you are installing is suitable for your operating system.

No sound after update

The issue of no sound after switching to a new operating system has already been discussed above. The situation is different if a similar conflict occurs after a standard update.

First of all, try rolling back the drivers:

Also try updating the hardware configuration by first removing both the device and its drivers:

Right-click on the hardware in Device Manager and select the appropriate item from the list.
After that, update the driver through the same device manager.

Reinstalling drivers downloaded from the manufacturer's website may also help.

The operating system does not start after the update

It also happens that after the update the system itself stops starting. But this problem can also be solved.

Blue screen

If the error allows access to the desktop, try uninstalling the updates. To do this, in the search (next to the “Start” button), enter the query “View installed updates» and select the appropriate option. Find latest update, after which the system crashed, and click the “Delete” button. If the situation is resolved, temporarily disable auto-update (this process is described in detail above in the article) and report the error to the developers;
If a blue screen appears with the text “An error occurred while starting the system” or another similar message, click the “Repair” button. After this, the system will roll back to the previous version of Windows 10;
If there is no "Restore" button, try rebooting your device. If changes do not appear, turn off the computer, then turn it on, and at the moment when the operating system logo appears on the screen, turn it off again. After the next turn on, a message will appear stating that the operating system was launched incorrectly and a proposal to restore the system. If this does not help, you will need to use a recovery disc.

Video: fixing blue screen error on Windows 10

Black screen

in some cases, the appearance of a black screen (sometimes with a moving cursor) may indicate that updates are being installed. In this case, you should wait a little and check if the system is working;
If a black screen appears after entering your credentials, restart your computer. After that, find the reboot icon and click on it while holding Shift key. In the menu that appears, open diagnostics, select “Advanced options” and then select “Recovery”.

Reset settings

Often, restoring the system helps resolve the conflict - resetting all settings to factory settings.

Sometimes all you need to do is click on the “Recovery” button that opens on the error message. But sometimes you have to use recovery disks, information about which can be found on the official Microsoft website.

Finally, you can try to change the settings through the BIOS, but it is better to entrust this matter to a professional: incorrect actions can radically disrupt the operation of the device.

FPS decreased after update

FPS is the number of frames per second. Its decrease is usually noticeable in games. If the indicator drops after updating Windows 10, you need to update the drivers for the video card by downloading them from the developer’s website.

Also try using compatibility mode:

Right-click on Start.
Open Control Panel.
Go to Troubleshoot, then Programs, then Troubleshoot Compatibility Issues.
Click the “Next” button and select the program with which you noticed a drop in FPS. Then click “Next”.
Select “Diagnostics”, check the box next to “The program ran on previous versions" and click "Next".
Select your previous operating system and click Next.
Click "Check the program", then "Next", and select "Save these settings".

Internet not working after Windows 10 update

If you lose internet after the update, try the following:

remove antivirus programs;
delete third party programs, making changes to the functioning of the system;
disable the drivers and install them again via boot file from the manufacturer.

Game won't start after update

Most likely it will help manual update video adapter drivers with their preliminary removal. You can also try using the compatibility mode mentioned above.

So, we looked at all the ways to update drivers, as well as problems that may arise after updating. Before you start using Windows 10, be sure to read system requirements and help to see if it suits you new version operating system. And remember that Windows 10 was released not so long ago, and therefore may have flaws that will definitely be corrected by the developers.

USB (Universal Serial Bus or Universal Serial Bus)— the most multifunctional port to date. Using this connector, you can connect not only a flash drive, keyboard or mouse, but also many other devices to your computer. For example, there are portable mini-fridges with USB connection, lamps, speakers, microphones, headphones, mobile phones, video cameras, office equipment etc. The list is actually huge. But in order for all this peripherals to work properly and data to be transferred quickly through this port, it is necessary to install drivers for USB. In this article we will look at an example of how to do this correctly.

By default, USB drivers are installed along with the motherboard software, as they relate directly to it. Therefore, if for some reason you do not have USB drivers installed, we will turn first to the websites of motherboard manufacturers. But first things first.

In the case of USB, as with any other computer components, there are several ways to find and download necessary drivers. Let's look at them in detail in order.

Method 1: From the motherboard manufacturer's website

First we need to find out the manufacturer and model of the motherboard. To do this, you need to follow a few simple steps.

On the button "Start" you need to right-click and select « Command line» or "Command Prompt (Administrator)".

If you have Windows 7 or lower operating system, you need to press the keyboard shortcut "Win+R". As a result, a window will open in which you need to enter the command "cmd" and press the button "OK".

In both the first and second cases, a window will appear on the screen "Command line". Next, we need to enter the following commands in this window in order to find out the manufacturer and model of the motherboard.

wmic baseboard get Manufacturer - find out the board manufacturer
wmic baseboard get product - motherboard model

Now, knowing the brand and model of the motherboard, you need to go to the manufacturer’s official website. You can easily find it through any search engine. For example, in our case it is ASUS company. Let's go to .
You need to find a search bar on the site. We enter the motherboard model into it. Please note that in laptops, most often the motherboard model matches the model of the laptop itself.

By pressing the button "Enter", you will be taken to the search results page. Find your motherboard or laptop in the list. Click on the link by clicking on the title.

In most cases, you will see several sub-items at the top. mother card or laptop. We need the line "Support". We click on it.

On next page we need to find a point .

As a result, we will be taken to a page with a selection of the operating system and the corresponding drivers. Please note that you may not always be able to see the required driver on the list. In our case, the driver for USB can be found in the section "Windows 7 64bit".

Opening the tree "USB", you will see one or more links to download the driver. In our case, select the first one and press the button "Global".
The download of the archive with installation files will begin immediately. After the download process is complete, you need to unpack all the contents of the archive. In this case, it contains 3 files. Run the file "Setup".

The unpacking process will begin. installation files, after which the installation program itself will start. In the first window, to continue, you must click the button "Next".

The next step is to read the license agreement. We do this as desired, after which we put a mark opposite the line "I accept the terms in the license agreement" and press the button "Next".

The driver installation process will begin. You can see your progress in the next window.

Once the installation is complete, you will see a success message. To complete you just need to press the button "Finish".

This completes the process of installing the USB driver from the manufacturer’s website.

Method 2: Using automatic driver update programs

If you don’t want to bother with searching for the manufacturer and model of the motherboard, downloading archives, etc., then you should use this method. For this method, you will need any utility to automatically scan the system and download the necessary drivers.

For example, you can use or . In any case, you will have plenty to choose from. Similar programs on the Internet today large number. Take for example the same one. ABOUT detailed installation You can learn about drivers using this program from our special lesson.

Method 2: Through Device Manager

Go to Device Manager. To do this you need to do the following.

Please note that this method is the least effective of all three. But in some cases it actually helps the system to at least recognize the USB ports. After such an installation, you must search for drivers using one of the two methods listed above in order to ensure that the data transfer speed through the port is as high as possible.

As we previously advised, for any force majeure situations, always save the most important and necessary drivers and utilities on a separate media. If necessary, it can save you a lot of time, which will be spent searching for software again. In addition, situations may arise when you simply do not have access to the Internet, and you will need to install drivers.

Peripheral devices such as a mouse, keyboard, Web camera, and printer are usually connected to the computer via USB ports. In this case, it often happens that one or more ports stop working. That is, when you connect, for example, a flash drive to a computer, it is not recognized, the keyboard or mouse may freeze, and the printer may not respond or print pages.

There are several probable causes where some or all of the USB ports on the computer do not work. Let's try to understand this issue and find out what should be done to restore normal functioning computer.

Checking BIOS settings

The first thing you should pay attention to is BIOS settings computer. To enter the BIOS you will need a working keyboard. If the keyboard is connected to the computer via USB and it does not work, then you need to connect a keyboard with a PS/2 connector. Otherwise, you simply won't be able to do anything.

So, let's go into the BIOS, for which, when starting the computer, you need to press the enter key, usually DEL. There may be another key that appears on the screen and is listed in the motherboard manual. After entering the BIOS, find the section responsible for integrated devices (Integrated Peripherals) or the “Advanced” section. Here you should find the “Onboard Devices Configuration” subsection. It is there that the parameters responsible for USB operation controllers: USB Function or USB 2.0 Controller. These parameters must be Enabled. And if one of them is disabled, then hover over it and press Enter, thereby turning it on. To ensure that the changes you make are not lost, you must save them by pressing F10 and confirm saving by pressing the Y or Enter key.

After restarting the computer, check if the USB ports are working. And if not, then you should look for the reason elsewhere.

USB ports on the front of the computer do not work

How special case USB only on the front panel may not work for you. In such a situation, you need to check whether the necessary connectors on the motherboard are connected and whether the wires are damaged. To do this, open the side cover of the system unit and pay attention to the connector at the bottom of the motherboard. On the board itself there is an inscription USB1 or USB2, as well as on the block itself. The wires from the block go to the front panel, and if they are disconnected or broken in one place, then you have discovered the cause of the malfunction. Damaged wires should be connected or replaced. It would also be a good idea to check the contact in the connector on the motherboard. It is also worth paying attention to the board located on the front panel. Perhaps there is short circuit By the way, such a short circuit can be caused by accumulated dust. So be sure to clean system unit from dust.

Problems with the device itself or the cable

The next source of problems with USB may be the cable with which, for example, the printer is connected. This fault is easy to identify and fix. We connect the flash drive to the connector being tested. If it works, then we try to connect another known-good equipment, for example a USB hub, using a suspicious cable. If it also refuses to work, then the reason is clearly in the cable and it should be replaced.

Power outages

There are situations when there is simply not enough power for all devices. For example, when connecting an external hard drive, which uses two USB connectors at once, the printer or keyboard may turn off. In this case, the power of the power supply is not enough to provide energy to all consumers. In this case, the problem may not appear immediately, but after some time after turning on the computer. There are several ways out of the situation. If you have a low-power power supply installed, for example, 300 W, then it would be logical to change it to a more powerful one, 450-600 W. You can also use an active USB hub (with external power). It will allow you not only to increase the number of connected USB devices, but also to power them from a separate power supply.

Another reason affecting USB operation is a dead CMOS battery. But at the same time, every time you turn on the computer, you will observe a problem system time and date. After replacing the battery the problem goes away. But this does not occur often, so you should check other possible sources of malfunction.

Missing or incorrect installation of USB drivers

Reasons related to software malfunctions in Windows 7/10, can be identified using Device Manager. If you notice that one or more devices in particular are not working, regardless of the port used, this may indicate that the problem is in the device itself. Open Control Panel and go to Device Manager. All connected devices will be displayed there. If there are items in the list next to which there is a yellow exclamation mark or instead of the name it stands Unknown device, then the problem is in this very device. There may be several possible problems here.

Often USB inputs stop working after reinstallation. Windows installations 7/10. The reason is incorrect installation drivers or the necessary drivers may not be found at all. You will have to select and install manually.

Often, to fix a problem you just need to update the drivers. So, if automatic Windows update, and the system itself was installed quite a long time ago, then the relevance of the software is lost, and problems may appear. system errors. In this case, the device begins to work incorrectly, or even stops functioning altogether. To update (reinstall) drivers USB controller You can use a CD/DVD with drivers for the motherboard or download the necessary drivers from the motherboard manufacturer’s website.

You can also turn off the power saving feature for all ports using Device Manager. Expand the list of used USB devices, hidden in the sections “USB Controllers”, “Mouse and Other Pointing Devices”, “Keyboards”. Double-click on to the desired device to open the properties window. Now switch to the “Power Management” tab and uncheck the “Allow the computer to turn off this device to save power” checkbox. Thus, the device will always be activated under any circumstances.

If some equipment is not recognized, then there may be either a problem with the drivers already known to us, or a hardware problem, consisting of a lack of contact, a damaged cable, or a malfunction of the controller. Moreover, it often happens that when a faulty device is connected, the others stop working normally. The keyboard starts to freeze, as does the mouse, and the printer stops printing. The problem is similar to power shortage, that is, all power consumption is spent on faulty device, in which there may be an ordinary short circuit or other malfunction.

USB ports not working due to controller damage

If none of the above actions helped restore the functionality of the USB ports, then you should check the controller USB motherboard board, which could fail. High-quality repair and diagnostics in this case should be entrusted to specialists service center. As a way out of the problem, try installing an expansion card, the so-called USB PC controller, which is installed in the PCI slot on the motherboard. This solution is noticeably cheaper than repairing the motherboard USB controller, and when using an additional USB hub, the problem with the lack of ports will not be relevant at all.

As you can see, finding and fixing problems with USB ports is quite a troublesome task, and all because there can be a lot of reasons. Sequential search and eliminating obviously incorrect paths will allow you to identify and eliminate the problem.