• The time on the computer is reset when turned off. Time and BIOS settings are reset

    Real-time clock failures in Microsoft operating systems have a long history, dating back to the times of operating systems of the MS-DOS family with a console interface. The first versions of DOS required the user to manually enter the current date and time at system startup and counted minutes and seconds only during the current user session.

    The fact is that their readings were not synchronized with time readings on remote servers, as is happening now, but were based on the functioning of a special microchip soldered directly into the computer’s motherboard. Such a concept as a time zone was not supported in principle, and the user himself had to monitor everything related to the operation of the clock in real time. As soon as the microchip battery was discharged, there was no question of any measurement accuracy.

    This caused many programs to crash and even systematically freeze the computer. Therefore, the user not only needed to know how the timer mechanisms physically function, but also be able to replace the battery in a timely manner, which required fiddling with the guts of the PC hardware.

    However, the time is also lost on modern versions of Windows. Why the time on a computer gets lost when synchronizing with a remote server and how to fix this problem is a topic for a separate discussion. It is to her that we have dedicated this short article. We will not deal with the causes of occasional bugs, but will describe a situation where the clock on the computer acts up regularly.

    Causes of problems with the system chronometer

    There are three main reasons:

    • There is a discrepancy between the time zone of the region in which the user is located and the time zone specified in the computer settings.
    • Problems with the CMOS battery, the same one we talked about above. Be that as it may, it is still used by Windows for timer reports.
    • The computer is infected with a special type of virus that affects the PC chronometer readings.

    In all these cases, a situation arises that is typical for ancient versions of DOS: the user logs into the system and starts fiddling with the time settings. True, he does this not in the console, but using the tray applet, but the essence of the matter does not change at all. Who enjoys adjusting these parameters every time?

    There are also unobvious consequences of this problem. For example, many sites use linking visitors to a certain period of time. And if the readings of the computer clock hands are outside this range, then access to the site’s resources is blocked. Another problem relates to software licensing.

    Modern licensed software packages tend to allow the user to work with them only with correctly configured timing that corresponds to the license validity period.

    Incorrect operation of the Windows time measurement subsystem leads to the fact that these programs simply refuse to start (a specific example is antivirus software).

    To avoid any troubles, you need to set up synchronization with the Internet. This is quite possible, since most modern computers are connected to the network almost constantly:

    • Go to the operating system control panel.
    • Open the “Date and Time” window using the link with the same name.
    • Go to the “Internet Time” tab.
    • Click on the “Change settings” button.
    • We check the box responsible for synchronization.

    The clock no longer goes astray, and you now know what to do if the time is constantly lost on Windows 7.

    BIOS settings directly affect the operation of computer components. Information about the settings of the base system is stored in the CMOS chip, which has very limited memory. This is due to the fact that this chip must retain information even if the power from the computer is completely disconnected. It stores not only BIOS settings, but also date and time information, as well as key computer boot parameters. If the date and time on the computer gets lost after each reboot, it means that the CMOS chip is to blame because it does not save information. In this article, we will look at what may be causing this and how to fix this problem.

    The date and time on the computer is lost due to the battery on the motherboard

    The most common cause of CMOS memory reset is a dead battery on the computer motherboard. Motherboards, both stationary system units and laptops, are equipped with a position for installing an autonomous power supply of the CR2032 class, designed for a voltage of 3 Volts. It is responsible for the operation of CMOS memory even when power is completely disconnected from the computer. Accordingly, if this battery is discharged, the computer’s date and time will begin to change after it is turned off, and the installed BIOS settings will be set to the “default” value.

    In such a situation, it is necessary to replace the battery on the motherboard, to do this:


    Important: If the battery was not securely fastened in the “socket” upon detection, you can try to fix it and turn on the computer again, adjust the time, and then reboot. It is possible that the battery is working, but it “jumped out” of the motherboard.

    1. After removing the battery from the motherboard, insert a new one in its place and securely fix it;
    2. Turn on your computer, launch the BIOS and make the necessary settings.

    When buying a new battery, it is better to pay attention to lithium options rather than salt ones. The fact is that such a power source is inexpensive, and the lithium version can last up to 10 years, while the salt version will use up its resource in 2-3 years.

    Resetting the date and time on your computer for other reasons

    In most cases, when you restart your computer, the BIOS and time settings are not saved due to power issues. However, if the problem persists after replacing the battery, there are a few more ways that can help correct the situation:

    If, after following all the recommendations, the date and time on the computer continues to go wrong, most likely the problem is related to the motherboard. In such a situation, you need to contact a specialized service center, where the board will be checked using diagnostic equipment, and then the technicians will be able to fix the problem by “resoldering” the faulty component.

    A guide to troubleshooting a date and time problem on your computer.

    Navigation

    Some owners of desktop computers and laptops may periodically encounter a problem when, after rebooting the PC, the time and date in the operating system are lost. This problem can occur on Windows XP and Windows 7 operating systems, as well as on other operating systems.

    The occurrence of this problem may be due to both system configuration and technical problems. However, there is no need to panic and take your computer to be repaired. It is possible to get out of this unpleasant situation on your own, and in our article you will learn how to do this.

    Why does the time and date on a computer or laptop constantly get lost after turning it off: what to do, how to fix the error?

    So, as mentioned earlier, the problem with the date and time failing on the computer can be associated with both a software failure of the settings and technical malfunctions. And if in the first case almost any user can fix the problem on their own, then in the second case not everyone is able to disassemble the PC and carry out the necessary actions. But let's start from simple to complex. The reasons for date and time failure may be the following:

    Incorrect time zone set

    The most common reason for date and time failure is the time zone that is not suitable for you. When the operating system is loaded, synchronization with the server occurs, during which the clock and calendar are lost. To set the correct time zone, you need to do the following:

    Step 1.

    • In the lower right corner, right-click on the calendar and select the line “ Setting the date and time».

    Step 2.

    • In the window that opens, look carefully at the set time zone and if it is not set quite correctly, then left-click on the button “ Change time zone", find the one you need, click on the buttons " Apply" And " OK».

    • Try restarting your computer and checking your clock. If the problem persists, then proceed to the next section of the article.

    Automatic changeover to winter/summer time

    As many people know, in 2014 in the Russian Federation the government canceled the transition to winter/summer time. However, if your operating system was installed before 2014 and was not updated, then most likely you have this automatic transition activated. The best solution to the problem is to download and install the latest update package for your operating system, but if for some reason you cannot do this, then follow these steps:

    Step 1.

    • Right-click on the calendar in the lower right corner again and select “ Setting the date and time».

    Step 2.

    • In the window that opens, click on the tab " Internet time", then click on the button " Change settings" and in the new window that opens, remove the marker from the line " Synchronize with an Internet time server».
    • Next, click on the buttons “ Apply" And " OK" in both windows.

    Step 3.

    • Now, all you need to do is go to the “ Date and time", click on the button " Change date and time» and set the parameters you need.
    • Next, you should restart your computer and check if the problem goes away.

    Malware penetration

    • Another reason why the date and time may be lost is that the PC is infected with viruses. Malware generally disrupts the operating system and messes up its settings, including the date and time.
    • Check your PC with several antivirus programs. You can start with a free utility Dr.Web CureIt, which can be downloaded from this link.

    Dead motherboard battery

    • Few people know that the motherboard, namely its memory, needs a separate power supply. This memory stores the computer's configuration. Including date and time settings. The motherboard is powered by a 3-volt lithium coin cell battery, which discharges over time.

    • You can replace this battery yourself by disassembling the computer case, removing the dead battery and replacing it with a new one. However, if you are not computer savvy, it is strongly not recommended to carry out this procedure yourself. Especially if you are the owner of a laptop. Take your computer to a service center or call a specialist to your home, having first purchased the necessary battery.

    VIDEO: Why does the date and time on the computer get lost?

    Today I came across a computer with one minor but unpleasant problem. Since it is quite common (every computer owner over 5-7 years old encounters it sooner or later), I decided to tell you in my blog why it occurs and how to solve it.

    The “symptoms” are: the date and time on your computer is intermittent reset. This happens after electricity stops flowing to it (for example, you turn off the surge protector at night.)

    Causes, diagnosis, and solution to the problem - read below. For this simple repair you will have to spend 50 rubles and 10 minutes of your time.

    CMOS Checksum Bad/Error - Defaults loaded. What does it mean?

    Not only that date and time constant gets lost. When you turn on the computer (after turning off the power), it usually produces the following “picture”:

    Users who know English and have a little knowledge of PCs understand that they need to press F1 and set the correct time settings in biose (or, the time can be adjusted each time in Windows.), and for many such an inscription on the computer screen is confusing.

    There are different types of text:

    CMOS Checksum Bad/Error - Defaults loaded. CMOS RESET.

    CMOS Date/Time Not Set

    Press F1 to Run Setup/Continue

    Press f2 to load default values ​​and continue

    It is not possible to ignore incorrect time on a computer. The fact is that when you try to access many sites, browsers give clock error.

    Thus, the problem of constantly resetting the date and time can greatly ruin your life. But don't be upset! Next, I will tell you who is to blame for it and what to do.

    The date and time on the computer constantly gets lost. Why does this happen and how to fix it.

    Many people don't know, but the computer has a battery. It is needed there - to power the bios chip. This chip stores all the hardware settings of your motherboard. It is also needed to power the quartz, which is responsible for the clock in the computer.

    Like any other, this battery can run out. When this happens, if there is a power outage, there will be no one to power your BIOS, and it will “reset”. It will come with the BIOS time and date get confused.

    The solution is logical and simple - the battery needs to be replaced. To do this, you need to remove the cover of your PC and find the round battery on the motherboard. Don't tell me you looked and you don't have it there. Believe me - there is. Most often, it is visible immediately. But it can easily be hidden under the video card, as was the case in my case Video on YouTube channel.

    When you find it, you can measure the voltage of the battery with a tester and make sure that it is dead. Or you can change it right away.

    A whole battery must produce at least 3 Volts!!!

    How to change the battery in a computer?

    This battery is marked CR2032. You can buy it at any computer store, or on Ali. I bought it from Ikea:

    There is nothing difficult about replacing the battery.

    You just need to carefully pry it up with something like a flat-head screwdriver. It is spring-loaded and will fly out on its own.

    I think you won’t have any special questions about putting the new battery back either 😉

    [VIDEO] - Why does the time and date on the computer get lost?

    After replacing the battery, I’m sure the problem with constantly resetting the clock and BIOS will not bother you for the next five years!

    Your computer will become outdated faster and you will buy a new one :)

    Don't hesitate to like it if it was interesting!

    Greetings, friends! My friends contacted me several times with various problems in the operation of the computer, the reason for which was the discharge of the three-volt battery inside the system unit.

    And the problems were the following: someone’s anti-virus programs stopped working correctly, they began to panic because of license errors when trying to update. They refused to work with the Internet and showed errors connecting to the server. Every time I turned on the PC it happened again. And only one paid attention and asked why the time on the computer was lost after it was turned off.

    Source of the problem

    The CR2032 battery, the size of a ruble coin, is located on the computer and powers the CMOS memory, which stores BIOS settings, including date and time. Why is the date not lost when rebooting the computer? The fact is that at this moment the supply voltage is provided by work. And after disconnecting from the electrical network, the voltage disappears, and the data in the volatile CMOS memory is lost. Conclusion - the battery needs to be replaced.


    If you have a desktop computer, then you can change it yourself. Unplug the power cord. Remove the side wall and carefully pull out the battery, pressing the lock. Put a new one in its place. And, if you are the owner of a laptop, then it is better to contact a specialist, because disassembling a laptop is much more difficult. You can also ask to clean your laptop to avoid overheating in the future.

    After replacing the battery, you must set the correct date and time. This can be done in the BIOS settings or in the operating system itself. Right-click on the computer clock and select Set date and time.

    On the Date and Time tab, you can change the time zone and current date and time.

    Sometimes there is a problem with the transition to daylight saving time, then this is solved by updating the system. In Windows 7 and higher this problem no longer exists, but in Windows XP it may still exist.

    On the Internet Time tab, you can configure your computer to automatically synchronize with a time server. Then, when you turn on your computer, it will synchronize the time with the Internet. I specify timeserver.ru as the time server. Unlike other time servers, it doesn't let me down.

    I hope you gained some useful information for yourself. Have you had a similar problem and how did you solve it? Share your experience in the comments.

    Dear reader! You have watched the article to the end.
    Have you received an answer to your question? Write a few words in the comments.
    If you haven't found the answer, indicate what you were looking for.

    Read more: