Disable usb controllers on windows 7. Enabling USB ports on a laptop

If the USB ports on your PC are not working and Windows settings and driver updates do not help, perhaps the controller was disabled in the BIOS. In this case, you will need to go to the configuration menu and turn everything back on.

There are many different versions BIOS with its own interfaces and subtleties of operation. Also, a more modern complex can work on your computer - UEFI, which supports a full GUI interface. This article discusses the distributions that are most often installed on motherboards.

Entering BIOS settings

To start changing the configuration, you need to go to the corresponding menu. It can be opened during power on personal computer- before it started Windows boot With hard drive.

Turn on your PC. In case it is already running: reboot. Wait sound signal speaker: a short single beep indicates that everything is internal components, necessary for the computer to operate, have been detected.

Now you need to click hotkey to call the configuration. This must be done before changing the screen. If you don't have time and Windows starts loading, reboot. The keys depend on the model installed motherboard and versions BIOS firmware. You can find it in the user manual that came with the motherboard, on the manufacturer’s official website, or view on your PC screen when loading it:

If you don't know the board model, that's okay. Just try pressing the following keys: Tab, Delete, Esc, F1, F2, F8, F10, F11, F12. One of them will definitely do.

You don't have to try just 1 option at a time. You can quickly press all the buttons from the list without any problems. One of them will come up and launch the BIOS settings, and the rest will be ignored.

Entering the BIOS/UEFI settings of the latest PCs

Many modern computers boot up so quickly that you won't be able to access the keystrokes when you turn them on. This is also true for laptops. That's why latest versions Windows OS has acquired new feature launch. Let's show it using Windows 8.1 as an example.

Your computer or laptop will reboot into setup mode. After restarting your PC, you will also be able to select option to run from a USB drive or DVD.

Menu navigation

Almost all BIOS versions lack GUI. This means that you will have to work only using the keyboard, as in, for example, Windows console. Navigation is carried out using the up-down and right-left arrows. To open any section, use the Enter key to go back - “Escape”. A small reminder of the keys used is always shown on the screen.

Firmware complex UEFI installed on the most expensive and powerful motherboards. He supports more drivers and can use a mouse. Its interface will be familiar Windows users and other modern operating systems.

Each version has its own interface and sets of options. Even the names of the same parameters may differ. The following article describes several popular BIOS releases.

AMI BIOS

A very common option that can be found on many modern computers. The main menu is divided into 2 parts: a list of categories and various actions, such as exit or save. You will be working on the left side.

You need to go to the section called “ Integrated Peripherals" There is no Russian version of the interface, so all commands are only in English. Use the Down arrow to highlight this item and press Enter.

Here you need to enable ( Enabled) 4 options:

• USB EHCI controller– main controller. If the motherboard has version 3.0 ports, this item will be divided into 2 parts: “Controller” and “Controller 2.0”;
• USB Keyboard Support– keyboard support;
• USB Mouse Support– mouse support;
• – work with external data storage: flash drives, disk drives, disks of smartphones and digital cameras.

In some older versions there are only 2 points " USB controller" And " Legacy USB storage support».

When you are done with the settings, press the F10 key to save changes made and restart your computer.

Phoenix AwardBIOS

Another popular version that can often be found on modern laptops. Doesn't have home page, like AMI, but with convenient thematic tabs at the top. You can move between sections using the left and right arrows, and between items using the up and down arrows.

Go to the section " Advanced» using the Right arrow. In it, find the category “ USB configuration" All items in this section must be moved to the position “ Enabled" In some versions the category " USB configuration" may be located in the " tab Peripherals" and not in "Advanced".

To exit the menu, press F10 and confirm exit.

AMI BIOS for Asus

AMI version used on Asus laptops. Externally it is very similar to Phoenix - a similar bookmarks bar. Settings USB are in the section " Advanced" Go there, enable all options and exit using the F10 button.

UEFI

Contrary to popular belief, UEFI is not part of the BIOS. It can rather be called a more advanced, but less popular competitor. Exists large number different versions, each with its own interfaces. However, here the controls are similar to the usual Windows, so you can easily find the options you need.

Windows Settings

If at the BIOS level all ports and controllers are enabled, but the USB ports still do not work, there may be a problem in the settings of your Windows system.

First, just try disconnect and reconnect the device. This will check if the drivers are correct. If there's something wrong with them, Windows will try to reinstall them.

If nothing happens when you reconnect, try turn on the controller V Windows registry. To do this you need to do the following:

Video: how to configure any BIOS to boot from a USB flash drive

Stopped working USB ports on the computer and Windows laptop? The first thing you need to do is check each port on the computer; if all of them do not work, you need to determine the reason.

The simplest and reliable way, this is to connect USB keyboard, turn off the computer, turn it on and try to go to the BIOS in a way familiar to you. If you can’t get into the BIOS using just one port in a way you couldn’t before, the reason is technical.

In this case, you need to open the system unit and check the connection USB connectors to the motherboard. If everything is in order, you need to install it in PCI slot discrete USB card and check whether the ports from it work (maybe your motherboard is burnt out).

Remember that USB ports, in addition to transmitting information, are also power ports, so it often happens that due to a weak power supply, they may also not work correctly.

If the computer or any application does not work correctly after connecting the device to the USB port, there may be several reasons for this. Before pinpointing the source of the problem, you need to check the operation of the peripheral device, USB port, or USB driver A. Below we provide a list of several simple steps, which will help you identify the problem and fix it yourself, without contacting computer technician.

To reset the USB driver and software that are conflicting, you simply need to restart your computer. Very often this helps fix the problem.

Sometimes a different order can help. Turn off the computer and disconnect any devices connected to the USB ports, including the keyboard and mouse. Turn on the computer again and when the operating system boots, one by one, connect all the peripheral devices that were previously disconnected to the USB ports. If when connecting specific device, for example USB RAM, a problem occurs, make a note of which port it happened on. Try connecting this device to another free port. If the problem goes away, then the specific USB port is faulty. Otherwise, the problem must be looked for either in a peripheral device or in the USB cable.

USB cable and connector

When a USB port does not work, very often the cause of the malfunction may be a damaged cable or connector. Carefully inspect these connection elements for damage such as cracks, chips or cuts. Look inside the USB connector and connector and check for dirt, dust, or other small objects. You can clean the connectors yourself using a dry brush or air compressor(vacuum cleaner). This must be done with the cable disconnected. If the interface cable is severely bent or broken, you should replace it immediately - a new cable costs a penny.

Differentiating the problem - port or device

If a program or computer stops working normally immediately after connecting a new device to the USB port, then you should try connecting another device to it. If the computer continues to operate normally, the problem is in the peripheral device. Do you have a second computer? Try connecting a suspicious device to it and recheck its functionality. If the situation repeats, it definitely needs to be changed. If you used USB hub, remove it from the connection circuit. In case USB problems The device must be connected directly. In addition, problems may arise if you connect a lot of peripherals at the same time or connect several devices of the same model at the same time, for example, two smartphones or printers.

Reinstalling the driver

Windows usually displays a message if a problem is detected with the USB driver. If this happens, open the “Control Panel” through the start menu of the operating system. Find the “Device Manager” item in it, open the utility and in the list installed equipment Find the subsection “USB Controllers” or “Universal Serial Bus Controllers”. Expand this item and find the item that is marked in the list of USB devices exclamation mark on a yellow background. If you find such a device, right-click on it and select context menu"Delete". Reboot your computer. After this, the operating system will automatically reinstall the remote driver immediately after loading. If reinstalling the driver does not solve the issue, you should try updating it.

Driver update

If the USB port does not work, you can try to manually update the USB device driver. To do this, open the “System and Security” section in the “Control Panel”, where you will find the “Device Manager” subsection. Enter administrator credentials if prompted by the system. Next, find the problematic USB device in the “USB Controllers” list and double click open the settings dialog box. Open the “Driver” tab, and in it click the “Update” button. To begin updating the driver, enter your system administrator credentials again. After the update, restart your computer and check the functionality of the problematic device.

What is the difference between the USB ports located on the back of the computer and on the front? The difference is that those USB ports that are located on the back connect directly to the USB controller, which is located on the motherboard itself and is an integral part of it. But the front USB ports go through a USB hub and are connected via a cable, and here it may be that the cable is of poor quality, and problems with the ports may appear.

If you connect two power-hungry USB devices (for example, a portable hard drive and phone) then one of these devices will run out of power and it will either not work correctly or not work at all. Why you ask? The USB controller provides the device connected to it with a power supply of -500 mA at 5 V. If the USB interface device does not have an additional power adapter, then it must operate from the USB interface, without additional food, that is, 5 V should be enough, but if two devices are connected to the USB controller using a hub.

The USB ports on the front of the computer are USB hubs that have one 9-pin input connector for connecting to the motherboard on one side and multiple USB ports for connecting devices on the other. The USB hub cable transmits information to the connected device, and also supplies it with electricity, but if there are two devices, and the power to the hub is still supplied at 500 mA at 5 V, then of course there is not enough power for the devices.

You can connect a mouse, keyboard and flash drive to the USB hub, and if you want to use other devices such as a smartphone, external hard disk, etc. , you must use a USB hub with an additional power supply supplying 5V to each of its USB ports.
USB ports don't work

If you suspect that the USB port on your computer is not working, check the device you are connecting to on another computer. After all, it also happens that it is not the USB port that does not work, but the device that you are trying to connect, but it also happens the other way around. Test the device on another computer.B Award BIOS find the Integrated Peripherals parameter, and in Ami BIOS Advanced parameter, go into them and see the USB Configuration item, press Enter, our USB Controller or USB Controller 2.0 should be in the Enabled position, that is, turned on.

USB ports don't work

It also happens that the USB port works and the device is working properly, but there is no connection between the computer and the device...... here the fault may be in the USB cable. And there are cases when the USB ports on the front panel are not connected at all.
Maybe the USB hub is faulty? Try using a different USB hub with a good shielded cable. Connect it to another 9-pin connector on the motherboard.

Sometimes the USB ports on the front panel are connected using pin cables (they also say in bulk), it may well be that the cable is faulty or the pinout has been mixed up.

Also, the cause of malfunction of USB ports may be a low-power, or possibly faulty, power supply.
Or it might be faulty south bridge. You should also not forget about updating drivers, both for connected devices and for the motherboard chipset.

You can overload the USB hub and the connected device will stop responding to you; this can be cured by simply restarting the computer. Almost all USB hubs have power management and Windows can turn off the device to save power.

Firstly, if when you connect a flash drive to a computer or some other equipment, the port does not work quite correctly or the device connected to the computer is not detected by the system at all, then in this case you should make sure that the controller is turned on PC motherboard.

Quite often, users forget to turn on the USB controller. It seems like a simple, but still common problem when the user starts the PC, but the device is not detected. It is possible to fix everything here; to do this, you need to go into the BIOS and enable the appropriate parameter. By the way, if you don’t know what a BIOS is, then I recommend that you definitely read the article

So, go to the BIOS and find the item “Integrated Peripherals - this applies to the Award BIOS,” or to the Ami BIOS - Advanced.”

Next, press “Enter” and go to “Onboard Devices Configuration” and make sure that the “USB Function” and “USB 2.0 Controller” items are in the “Enabled” position. If everything is so, then everything is included. Otherwise, the parameter can be turned OFF, position “Disabled”. If the option is disabled, you should enable it. Next, save the changes, then reboot the PC system and check the functionality of the USB port. Be sure to check if the USB ports on the front panel are connected system unit to the motherboard itself using the so-called block.

If the port still doesn’t work, then we move on.

Secondly, maybe the problem with the port not working is completely hidden in the USB extension cable? For example, there are situations when the computer does not recognize a peripheral device (printer), for the simple reason that the USB cable itself is simply damaged. The reason for cable damage can be very varied, for example, you accidentally placed a chair on the cable or some heavy object and simply pinched it. Therefore, do not be lazy to check the cable itself.

Thirdly, it is quite rare to encounter such a problem when the USB port does not have enough power. I'll give you concrete example. Imagine that you have connected a flash drive and a printer to the front of the system unit case in the USB connector. As a result, the operating system, when sending data for printing, informs us that the document could not be printed. In general, your computer simply does not see the printer. And if you restart the computer, the printer is detected by the system, and you can easily print a document. However, after a while, the computer again loses connection to the printer and the printer does not print. Do you know why?

This seemingly trivial problem at first glance is due to the fact that there is a lack of power for the USB port. As a result, the USB port refuses to function properly. Basically, such an incident associated with a lack of power occurs when connecting several devices to the front panel of USB ports.

Of course, not always, but such situations still occur. These USB ports are connected to the motherboard using a cable. In addition to transmitting data, this cable also powers the USB hubs themselves. It is possible that the power supplied simultaneously to two devices connected to the USB hub may not be sufficient. In this case, I can recommend that you connect the printer to the built-in USB port, which is located on the PC motherboard.

You can also change CMOS battery on the board. It happens that the problem completely disappears after replacing the battery on the motherboard. What kind of battery is this and where it is located, you can find out in this article:

In general, if your USB port, which is located on the front panel of the system unit case, does not work, then try replacing the USB hub itself. Who knows, maybe it is the one that is faulty.

You can also try plugging the cable into another USB connector on the motherboard.

Fourthly, if the USB port controller, which is responsible for identifying and starting the device itself, has failed, then things are, of course, bad. There is, of course, the opportunity to take and resolder the controller itself on the motherboard, but this takes time, you need to have the controller itself, and, of course, the soldering station. From a time-cost point of view, it is not entirely advisable. Another option is to entrust it to specialists, although there are also some pitfalls, price, quality of work, as well as the competence of the specialist who specifically works on this problem.

Fifthly, peripheral and mobile devices may not be recognized on your computer due to the lack of drivers and special software. We cannot exclude the fact that if you have been using your operating system for quite a long time and the system has not been updated at all, and indeed Windows assembly is not the original version, then in this case it happens that the drivers are considered outdated and therefore the system constantly freezes.

Sometimes Windows disables the USB hub altogether to save power. To prevent the USB device from being disconnected, you will need to do the following.

Open “Device Manager” by right-clicking on the “Computer” shortcut and selecting “Properties”.

After the Device Manager window has opened, double-click with the left mouse button on “USB Controllers” and expand the branch.

Now all you have to do is go to the root USB hub and in the “Power Management” section uncheck the box, as shown in the figure below.

Sixth, sometimes reinstalling the operating system helps fix the problem when the USB port does not work. Although, of course, first try to roll back the system to its previous state. Here is an article that will tell you how to do this:

Seventh, perhaps your system contains some faulty equipment, which is precisely the obstacle to normal operation USB port.

This problem is very relevant in our time. After all, quite often users directly encounter this. So, there is a solution. USB ports on your computer may freeze, contacts may short out, and many more. additional problems may occur when working at a computer.

We find a way out of our situation, check all devices for connection and disconnection. You will need to disconnect all devices and connect one at a time, for example, connect the keyboard first and see if it works, then connect the next device, let it be a mouse and so on. Connect additional USB devices, if they don’t work, then the problem is solved or you need to look in peripheral devices, maybe there is a short circuit there, but you never know.

Eighth, they completely forgot to enable the serial bus controller in the device manager. There are times when you don’t pay attention to the operation of USB devices, turn on the computer, download music, listen and enjoy new works of art. True, everything comes unexpectedly, suddenly you need a USB device, and then there is silence, it doesn’t work. The thought immediately comes to mind, maybe the controller is not turned on, let me take it and check, it is so.

Every PC has a device manager that shows which devices are connected, whether all drivers are installed and updates made.

In general, I think that you probably already know that if any driver is missing, the system automatically marks it with a yellow exclamation mark, this means a malfunction, as a result, with two clicks of the mouse you open additional window, information about the fault code and the possibility of restoring it is displayed here.

Ninth, if all of the above methods did not give a positive result, then I recommend that you install it on the motherboard USB board PC controller.

If your computer has a low-power power supply, for example 300 W, then it is likely that the cause of all the troubles is hidden in it, install a more powerful power supply, say 500 W, and check if the USB ports are working.

Concluding today's article, I would like to say that it is not always possible to easily find the culprit of all problems, sometimes it is not enough to simply reinstall Windows to find out what really happened.

If there are no drivers for serial bus controllers and the controllers themselves are marked with an exclamation mark, in this case you should either install drivers for the controller, or you can remove all controllers and restart the computer. After the computer boots, the system will try to install them again, and perhaps all USB ports will work properly again.

Restarting the computer
If all USB ports stop functioning for any reason, and USB devices are not detected, then to begin with it will only be enough to reboot the system unit. Perhaps this procedure will be eliminated immediately. This can happen if there were no problems loading the drivers.

In Device Manager, update the hardware configuration
A situation may arise when restarting the computer is not possible because it is performing some important operations. That is why, without rebooting the entire computer, you can reboot just the driver. This can be done through Device Manager. To take this action, just right-click on the “My Computer” shortcut and select “Manage.”

In the window that appears as a result of this, you need to click on the “Action” tab, after which you need to click “Update hardware configuration”. If as a result of this procedure the “USB Controllers” section appears, then the problem is completely resolved, and USB will continue to function.

Disabling the USB controller
There is one great way to make USB ports work. To do this, you need to disconnect and reinstall the USB controllers. You should immediately launch the same “Device Manager”. A list of equipment will appear in a new window, and from it you need to find the USB controllers section. Next, you need to select and delete each of these devices. After all devices are removed, you must restart your computer. This will reset the controllers so the USB ports will be available again.

USB controllers: driver update
The USB controller drivers may be damaged, therefore, the USB ports will not work. In such a situation, the only correct solution is to find and reinstall the correct drivers. To do this procedure correctly, you should find out the manufacturer of the USB port, because you need to download the appropriate driver. If you manage to complete this task, then installing the driver will solve the problem in an instant.

Disabling other USB devices
Of course, situations may arise when many USB devices are connected and the laptop will simply be overloaded. There may not always be enough power for all connected devices.

Login BIOS settings

To start changing the configuration, you need to go to the corresponding menu. It can be opened when the personal computer is turned on - before Windows starts loading from the hard drive.

Turn on your PC. In case it is already running: reboot. Wait for the speaker to beep: a short, single beep indicates that all internal components necessary for the computer to function have been detected.

Now you need to press the hotkey to call the configuration. This must be done before changing the screen. If you don't have time and Windows starts loading, reboot. The keys depend on the model of the installed motherboard and the BIOS firmware version. You can find it in the user manual that came with the motherboard, on the manufacturer’s official website, or look at it on the screen of your PC when it boots:

PC screen at boot

If you don't know the board model, that's okay. Just try pressing the following keys: Tab, Delete, Esc, F1, F2, F8, F10, F11, F12. One of them will definitely do.

You don't have to try just 1 option at a time. You can quickly press all the buttons from the list without any problems. One of them will come up and launch the BIOS settings, and the rest will be ignored.

Entering the BIOS/UEFI settings of the latest PCs

Many modern computers boot up so quickly that you won't be able to access the keystrokes when you turn them on. This is also true for laptops. Therefore, the latest versions of Windows OS have acquired a new launch feature. Let's show it using Windows 8.1 as an example.
Swipe your mouse from top to bottom or bottom to top along the right edge of the screen and click “Options” in the window that appears.
Click on “Change computer settings”
Click "Update and Recovery". Reboot in special mode
Next: “Recovery.”
In the section " Special options Download" click the Restart Now button.

Your computer or laptop will reboot into setup mode. After restarting your PC, you will also be able to choose the option to start from a USB drive or DVD.

Menu navigation

Almost all BIOS versions do not have a graphical interface. This means that you will have to work only using the keyboard, like in the Windows console. Navigation is carried out using the up-down and right-left arrows. To open any section, use the Enter key to go back - “Escape”. A small reminder of the keys used is always shown on the screen.

The UEFI firmware package is installed on the most expensive and powerful motherboards. It supports more drivers and can work with a mouse. Its interface will be familiar to users of Windows and other modern operating systems.

Each version has its own interface and sets of options. Even the names of the same parameters may differ. The following article describes several popular BIOS releases.

A very common option that can be found on many modern computers. The main menu is divided into 2 parts: a list of categories and various actions, such as exit or save. You will be working on the left side.

You need to go to the section called “Integrated Peripherals”. There is no Russian version of the interface, so all commands are only in English. Use the Down arrow to highlight this item and press Enter.

Here you need to enable (Enabled) 4 options:

USB EHCI controller – main controller. If the motherboard has version 3.0 ports, this item will be divided into 2 parts: “Controller” and “Controller 2.0”;
USB Keyboard Support – support for keyboards;
USB Mouse Support – mouse support;
Legacy USB storage detect – works with external data storage: flash drives, disk drives, smartphones and digital cameras.

In some older versions there are only 2 items “USB controller” and “Legacy USB storage support”.

When you're done with the settings, press the F10 key to save your changes and restart your computer.

Phoenix AwardBIOS
Another popular version that can often be found on modern laptops. It does not have a main page like AMI, but is equipped with convenient thematic bookmarks at the top. You can move between sections using the left and right arrows, and between items using the up and down arrows.

Go to the "Advanced" section using the "Right" arrow. In it, find the “USB configuration” category. All items in this section must be set to “Enabled”. In some versions, the “USB configuration” category may be in the “Peripherals” tab and not in the “Advanced” tab.

To exit the menu, press F10 and confirm exit.

AMI BIOS for Asus
Version of AMI used on Asus laptops. Externally it is very similar to Phoenix - a similar bookmarks bar. USB Settings are located in the "Advanced" section. Go there, enable all options and exit using the F10 button.

UEFI
Contrary to popular belief, UEFI is not part of the BIOS. It can rather be called a more advanced, but less popular competitor. There are a large number of different versions, each with their own interfaces. However, here the controls are similar to the usual Windows, so you can easily find the options you need.

Windows Settings
If at the BIOS level all ports and controllers are enabled, but the USB ports still do not work, there may be a problem in the settings of your Windows system.

First, try simply disconnecting and reconnecting the device. This will check if the drivers are correct. If there's something wrong with them, Windows will try to reinstall them.

If nothing happens when you reconnect, try enabling the controller in the Windows registry. To do this you need to do the following:

Bring up the Run dialog with using Win+ R (or through “Start”: in XP and 7 by left-clicking on it, and in 8 and 10 versions by right-clicking). enter regedit
Enter
regedit
and click OK.
Go to "HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Services USBSTOR" Registry Editor
Double-click on the “Start” entry to open the editing window.
Change the value to "3". With any other parameter value, the USB ports will not work.

For some reason, many people believe that before removing flash drives from a USB port, it is very important to use the “Safely Remove Hardware” function. When working with older operating systems, this is required to avoid damage to the flash memory. However operating systems evolved, but the “Safely Remove Hardware” function remained as a formality.

In fact, there is nothing wrong with disconnecting the flash drive without using the above dialog box, although you should not do this while data is being transferred. Modern operating systems even allow you to enable the option to quick extraction USB devices. In this article I will tell you how to do this.

Step 1: Open Device Manager by typing "Device Manager" into the search box in the Start menu.

Step 2: Once the Device Manager window opens, select and expand the " Disk devices" This will allow you to see all internal and external drives. The name of USB devices will always contain the word “USB”.

Step 3: Select the device for which you want to disable the need to safely remove it. Double-click on it and go to the “Policies” tab, where you will be offered two options - quick removal and optimize for execution. In the second case, you will have to use the “Safely Remove Hardware” option.

However, do not think that turning off optimization will make your flash drive slower. Testing has shown that in both cases the performance is almost identical. Select " Quick removal» and click OK.

Now you can disconnect the flash drive without having to go through the process safe removal.

Have a great day!

If you encounter a situation where your computer stops responding to commands entered using a connected USB keyboards or mouse, check parameters USB in settings power plan. Sometimes Windows Maybe turn offUSB devices during downtime, which contributes computer energy saving, but not always justified and convenient in terms of work.
Prevent temporary shutdown USB ports If you are faced with a similar situation, in power plan should be changed power settings. To do this, click the "Start" button and in the "Search programs and files" field, enter the word "Power Options" and press "Enter". The "Power Options" icon will appear, click on it with the left mouse button.

Open power plans You can also from by going to it in a way convenient for you and, if necessary, switching to the “Small Icons” view mode and selecting the “Power Options” item.

The "Select a power plan" window will open, in which, opposite current energy saving plan Click "Set up power plan".

In the next step, click "Edit" additional options food".

In the window that opens, find the item " USB Settings" and expand it first, and then " Temporary parameter USB disconnect port" by clicking on +.

Click Allowed and a drop-down panel will appear with options to choose from. There are only two of them, select “Prohibited”.

The USB interface is used everywhere to connect equipment, transfer data and charge devices. But sometimes users have a question about how to disable USB on a computer in order to protect data from copying or prevent the system from becoming infected with viruses.

BIOS Settings

You can disable ports directly in the BIOS. To do this, you need to restart the computer and, when turning it on, press the F2 key until it boots basic system I/O Here you need to find items related to USB operation: For example, Legacy USB Support.

Deactivate the parameters by moving their value to the “Disabled” position. To save your changes, press F10 and then Y.

Windows Tools

Windows OS provides users with a range of management tools USB ports. Let's consider several options for disabling all ports or only individual connectors.

If you can't figure out which BIOS settings need to be disabled, then use Device Manager to disable USB. Here you can disable both all connectors and individual ports.

You can turn off all ports or only some connectors to which flash drives or other external drives are connected. Alternatively, you can completely remove hardware drivers, but this method does not always work. When connecting the device USB system will detect that the required software is not available and will begin installing it independently.

If you are not afraid to work with the registry editor, then use it to deactivate all USB ports.

If you need to turn USB back on, go to the specified registry branch again through the editor and change the value of the “Start” parameter from “4” to “3”.

In some Windows versions(Ultimate, Professional) can be used to disable Group Policy Editor.

As you can see, this parameter is responsible specifically for prohibiting data recording. Simply put, the ports will work, but you won’t be able to write anything to external drives.

If Windows tools seem inconvenient to use, then use it to disable USB program Ports Disabler, which with one click disables the USBSTOR service, which is responsible for the operation of all USB ports on the computer. The program disables only ports intended for external drives (flash drives, hard drives), whereas the same adapter wireless mouse continues to work quietly.

After disabling the ports, none external storage will not be detected on the computer. If you need to turn the connectors back on, click the “Enable USB” button in the program.

Physical shutdown

To prevent the ports from working, you need to turn off their power. Those connectors that are located on the rear panel of the system unit will be difficult to disconnect from the motherboard.

If you need to turn off USB on the front panel of the system unit, it is easier to disconnect the wires.

This method does not completely block access to the USB interface, since the ports at the back will continue to work, but it will at least discourage users from inserting flash drives into the slots at the front, as a result of which the media often ends up broken due to careless handling.

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