My computer often turns itself back on immediately after it is turned off, what s going on?

Shutdown auto-restart.

1. Enter CMOS, in the power management menu, PME Event Wake Up should be Disable, 2. Click My Computer, Properties, Advanced, Settings, and turn off the automatic restart function if the system fails. 3. The software is incompatible, which often causes the problem of shutdown and restart, which is a new mechanism of XP. Workaround:

Right-click on "My Computer" and select Properties. Select the "Advanced" tab, find "Startup & Failback", and click the "Settings" button next to it. Remove the checkmark before "Auto Restart" in "System Failure" (if you're using XP only, you can uncheck all the checkboxes you see, which will speed up the XP startup).

4. Enter the safe mode, if it does not restart after shutting down, continue to check the system reason, if it restarts after shutting down, replace the power supply.

Information**.

The first thing to ask is, is it to turn it off and start it up, and if it's the first one, it's the possibility above

I've been in this situation before, but I didn't think it would be a backdoor if you were bothered.

Then you just turn it off and unplug it (that's what I did, I woke up in the morning for a few days and then turned it off and pulled it out).

If it's neither, then you can redo the system, the easiest way to do it

Why does the computer turn on and start itself and then turn it off and then turn it on again, and the repeated switching on and off proves that there is a problem with the hardware, and you need to check the computer motherboard.

Generally, the restart is caused by your own incorrect operation, remember not to do the operation that is easy to cause the restart. The computer should not operate at full capacity, that is, when playing games, watching **, **, and watching web pages at the same time, it is easiest to restart, freeze, and blue screen, so don't operate other things when playing games, watching**, **, and watching web pages. No matter what you're doing, as soon as there is a sign of a card, stop what you're doing and quit the trial, so you don't restart, and if you still do, don't play or don't look at it.

In terms of hardware, the temperature of CPU and other hardware is too high, the memory is less than the card, the hard disk is bad, the voltage is unstable, and the hardware is not suitable.

There are two power-off problems:

A: After 20-30 seconds, the power is off, and the fan on the CPU is loose.

Second: the motherboard and chassis may be short-circuited.

The current chassis is a piece of iron, so if you don't get it right, the chassis frame is not good, and it's easy to short circuit.

You put the green and black short wiring of the power supply and see if it can work all the time, if you can, then the motherboard is the problem, clear the motherboard battery and try.

Depending on the specific state of power on/off, there are hardware and software problems that cause this phenomenon.

Hardware, if the display has no signal display, but the light of the host will be on and off for a while, and then on and on, and the internal fan will stop after a while, and then turn again. This is a memory issue, to unplug the memory for cleaning.

Software,That is, the system,The display has a signal,There are some English boot interfaces when you boot up,But soon it will automatically restart,This is going to reinstall the system。

It means that there is a problem with the startup of the computer, and the startup failure is encountered during the startup process, so it is restarted.

1. It is the system reason to reinstall the system.

2. Set the update time by yourself, and the system will be turned on and off repeatedly for updates.

This should be a fault of the power supply hardware, the output voltage of the power supply is unstable, such a fault will occur, and the computer will be automatically restarted.

Either there is a problem with the system or hardware motherboard, let's see which step to reboot first.

Generally, there are two kinds of shutdown and restart, one is caused by the operation card before the shutdown, and the other is that every shutdown is a restart, which will be explained separately below.

1) Caused by the operation before shutting down

Play games, watch**, or operate large programs, or the computer has been used for a long time, at this time it is very stuck, you have to have some patience to wait for the computer to recover slowly, click on every page on the computer to recover slowly, and wait for the return to normal after shutting down or doing other operations, if it is still not, just press the power off button to shut down (if the computer is turned on for too long, my experience is, restart the computer every once in a while to release the cache and continue to play).

2) Restart every time you shut down:

If you have installed the Sogou input method, or installed the QQ input method to uninstall and try, you can also uninstall the input method and try to reinstall it (these software are the culprits, which is known from the exchange with the returner.) If it's not the problem here, take a look at the method below).

Try to uninstall all the software, drivers, patches, etc. before the accident, if the uninstalled software is invalid or you don't know what is installed, first soft and then hard, restore the system. Still can't reinstall the operating system, don't install software, patches, drivers, etc., and see if there is still a problem with the shutdown? If you don't install drivers, patches, and software step by step, don't install anything that doesn't fit (if you have any questions, please ask me).

Please note: If you restore the system or reinstall it, when installing drivers, patches, software and other things, be sure not to install the things that affect your accident this time, otherwise it will be restored or reinstalled in vain.

3) In terms of hardware, such as whether there is a problem with the hard disk, memory, etc., whether the temperature of the CPU and other hardware is high, if it is caused by hardware problems, it is recommended to overhaul it.

Is it the button on the chassis that turns off? Check out the jumpers!

Or don't be poisoned! Either you press Reboot too.

You may have clicked on the restart button.