It often happens that a computer that has worked without failures for a long time and served as a loyal partner for entertainment and an assistant in work suddenly starts to reboot spontaneously, generate errors, and blue screens. Of course, it becomes impossible to work with him, and such behavior can be a sign of rather serious problems. Before you finally give up and give the system unit to a service center, you can try to independently identify the reasons why the computer itself reboots. The range of problems leading to this is very wide, but there are two main categories of malfunctions, because of which the computer suddenly starts to restart spontaneously. The first category is problems associated with software and crashes in the operating system. Perhaps this type of problem can be fixed in the most painless ways for the owner’s psyche and wallet. The second category is problems with hardware. If the reason why the computer is constantly restarting is caused by problems with any module of the system unit, most likely you will have to fork out for the purchase of new hardware.
Of course, the easiest way to start is to suspect that the problems are related to software problems. It is possible that an insidious virus has crept into the system, forcing it to behave differently than it should be - freezing, issuing incomprehensible messages, and rebooting. Then the simplest solution is to check your computer for viruses. It will be superfluous to remind that when working under Windows, an anti-virus program must be installed that is regularly updated. It is she who will help check the computer, and it is best to use the safe mode of the system for such a check. In addition to checking for viruses, you should remove from the computer all unnecessary or suspicious programs and drivers, especially recently installed ones. Do not forget that some applications may conflict with each other, thereby causing system crashes. Sometimes a lot of useful information can give a blue screen with text that describes the essence of the error that caused the problem. If all the above measures do not help, and the question of why the computer itself reboots remains open, it is worth starting to check all the modules of the system unit in turn.
If the computer reboots after some time spent playing some kind of “heavy” game with good graphics, it is most likely that the video card or processor overheats . This means that the cooling system does not work well. In this case, you will need to replace the video card or cooler on the processor. True, you should not rush into this: sometimes it is enough to clean the inside of the system unit from dust. Often, it is she who causes the poor-quality operation of coolers. By the way, regular cleaning of the computer from dust is strongly recommended, since dust can also cause short circuits on the motherboard and other modules.
If there is no overheating, but the instability in the system is still present, and it is not known why the computer spontaneously reboots, we can assume that the power supply is to blame. Its problems are expressed in power surges and subsidence of the main stresses. Other system unit modules can be tested in various ways. There are special utilities for checking hard drives and RAM. And these modules, in particular, can become the reason why the computer itself reboots. Checking the video card and processor is easiest by installing them on another computer. Some information can give a visual inspection of all the details of the computer. For example, if swollen capacitors are detected on the motherboard or video card, this clearly indicates a malfunction of this unit. By the way, the reason why the computer itself restarts may be a failure of the motherboard. And sometimes several components break down at once. The most important thing is not to panic and not to be upset: cases when you have to completely change the entire system unit are quite rare, usually grief can be helped by replacing just one or two modules.