Why is the system time and the real time always different every time you turn on the computer?

Two situations: 1. The power failure of the COMS battery will cause the time to return to the factory date, and the solution is to change the button battery to OK

2. If you get a virus, this kind of virus will modify the system time, so that the system antivirus software cannot operate normally, the solution, if you have money, you can buy a genuine Kaspersky Antivirus, and if you don't have money, you can get a 360 security guard, and the antivirus will be OK

It should be that your motherboard battery is gone, replace it, the button battery of CR2032.

If it was a virus, your computer system must have been changed to 2007 or earlier. You can ** Rising and now have a half-year free version. After upgrading the virus database, disconnect the network cable, enter safe mode, correct the system time (mainly the date), and kill the virus.

It really doesn't work, reload.

If you fix the error, you can use 360 Time Protector, but there are several possibilities in the case of your computer, which need to be eliminated before it can be completely solved.

1: The motherboard battery is dead. A dead coin cell battery on the motherboard can cause such a problem. Troubleshooting method: Change the time under the normal desktop, and then restart the machine to see whether the system time is correct.

2: Viral impact. The next online version of the antivirus, such as Rising and so on, upgrade to the latest version of the virus database, and then enter the safe mode to kill the virus.

3: Redo the system. There is no need for a small problem.

You go to the 360 official website to go to the next time protector My computer was like this some time ago. Later, I also placed a time protector to make it

I used to look it up on the internet. I also estimated it myself. This may be due to a virus or Trojan tampering with your system for a period of time to achieve a temporary paralysis. So be sure to control the time for the time being. After that, go into safe mode to kill the poison

It could also be that the BIOS battery is dead, and the battery is replaced.

The motherboard's coin cell battery is dead, just replace it.

Don't bother looking for faults, you just need to change the coin cell battery.

Is it that the motherboard battery is dead.

Enter the BIOS to change it when you turn it on again.

Can you set it up in the control panel?

You'll see it when you look at it.

The computer is very smart, under normal circumstances, the time on the computer will be automatically calibrated as soon as it is turned on, but sometimes there will be problems, such as the time of each boot is not right, so why is this?

Windows PC.

The reasons for the inaccuracy of the computer time are: 1. The motherboard battery is dead. 2. There is a virus. 3. There is a problem with the motherboard.

Corresponding workaround:

1. Replace the motherboard battery, the model is CR2032, a button-shaped lithium battery.

2. Antivirus. 3. Send the motherboard for repair or replacement.

Here's how to judge:

1. If the time cannot be modified under Windows, or it jumps to an wrong time just after the modification, then it must be poisoned;

2. If the time can be modified under Windows, but the time is not correct after restarting. Then re-modify the system time, restart the computer, enter the BIOS to check the time displayed in the BIOS, if this time is wrong, it means that the motherboard battery is dead or the motherboard has a problem. If the time is right at this time, and the time is wrong after entering Windows, it means that it is a virus.

3. If the BIOS time is wrong, and the problem is still not solved after replacing the battery, then it is the cause of the motherboard, usually a very small chip, a capacitor or a circuit has a problem, just send it for repair.

How to automatically calibrate the time by the computer:

1.Start by double-clicking on the time in the bottom right corner of your Windows desktop.

2.Click on "Date & Time Settings".

3.In the Time Zone option, select Beijing time.

4.Turn on the "Set time automatically" switch.

Mac. It's the coin cell battery in the motherboard that's dead.

Every time I boot up, I go into the BIOS, and the time is wrong, that is, the coin cell battery used for setting up in the motherboard is dead.

The coin cell battery in the motherboard is dead. The solution is to go to the computer store and buy a coin cell battery to change it, and then set the time correctly.

Although the coin cell battery occupies a small space on the motherboard, the problems it causes should not be underestimated. The coin cell battery on the motherboard is underpowered, and the following situations generally occur:

1. The date and time of the system will be automatically changed, and there will be a situation that cannot be changed. (In this case, there is a possibility that it is caused by a virus).

2. After booting up, press the F2 button to enter the system.

3. Press the power button, the computer has no response, but the power light on the chassis shows that the motherboard is powered on.

4. The settings in BOIS will be automatically restored to the factory state.

In the above situation, it is generally required to replace the motherboard button battery.

This article is based on the Dell Inspiron 5000&&&MacBookAir brand, Windows 10&&& system.

What you say is different.

You didn't make it clear.

It is divided into two aspects.

First. After a long shutdown.

Time becomes after starting.

12:00 minutes.

That's a typical motherboard battery run out of power.

The best difference between this is:

He is generally from 12:00

Or from 00:00

Start the timer.

And the date will also change to the date when his motherboard was generated.

The solution is simply to replace one of the motherboard batteries.

5 pieces each. I can use it for at least one year.

Second. Time is variable after start-up.

Sometimes fast. Sometimes it's slow.

This is the problem with the crystal oscillator on the motherboard.

Not a battery issue.

To contact your motherboard manufacturer.

But after all this time.

Yes, there is a fee.

Therefore, it is recommended that you do not go for repairs.

Generally returned for repair.

It takes a month.

Hello! It may be that the CMOS battery is dead, you can replace the battery and try it.

If the battery is new or has not been replaced for much time, it may be caused by poor contact of the CMOS battery, and if so, a small piece of copper is stuffed into the contact point.

The time of the BIOS is not saved or saved, but it does not take effect. If so, there is a problem with the CMOS circuitry, including the motherboard-related circuitry and the CMOS that holds the BIOS program. If there is a problem with the motherboard circuit, it is recommended to repair it.

If the system may be poisoned, use the latest version of anti-virus software to check and kill the system to confirm that the system is virus-free.

Solution: Restart the computer to enter the BIOS, select the first line Standard CMOS Features and use the arrow keys and the + and - keys to modify the date and time lines respectively. After the modification, press F10 to save and exit the BIOS, reboot into the system to see if the time is displayed normally.

Hello! The computer battery is out of charge, you just need to replace it with a new one.

Replace the motherboard battery and reset the time and date.

1) Every time you turn on the machine, the time always starts from "00:00";

2) The orange phase of the sun is also calculated from a fixed date (such as a certain year, a certain month, and a certain day);

3) If you don't turn off the main power (don't let the plug power off) when you turn it off, everything will be fine the next time you turn it on. If that's the case, there may be a problem with the motherboard's "memory battery" (a round device the size of a penny on the motherboard). At this time, if you use it like this for the time being (do not turn off the main power when the power is turned off), there is nothing abnormal except that the power consumption is still nearly 5 watts per small chan after the shutdown.

If the problem is to be solved once and for all, there are two possibilities: (a) the battery is drained; (b) Poor battery contact. If your battery has only been used for two or three years, it is less likely that the battery is "running out", but more likely to be "poor contact".

You can slip the contact points with silver. The method is: remove the battery, grind the down-facing side of the battery back and forth on clean white paper a few times, and then grind the reed of the battery holder with a paper strip a few times (do not grind with sandpaper), and by the way, gently pull the reed (make it more elastic), and then install the battery to try.

If the fault is not resolved, it may be time to replace the battery with a new one.