Your computer is sick
You should keep your computer safe. What do You really know about viruses? If You think they are not dangerous, you are in a big mistake. In fact, computer virus can destroy all your data, but damage could be worse. What can you do when your computer gets infected? First try to use an antivirus program to scan your disk, it is still possible to remove a problem. What if it will not work?
In the worst case, call for help to a computer service - they will know what to do to fix your computer and save your files.
For a player
Computer to the player should be really good. What I mean is the equipment should have high parameters because the players are very demanding users. Which means the computer can be quite expensive. The failure can be very expensive too, so in that case, you should find a good computer service, where specialists are able to fix it. Of course, a lot depends on how badly your PC is damaged. However you should noted, that repair is still cheaper than buying a new one. So remember - take care of your computer :).
It pays off
Computer repair often pays off. There are a lot of failures that it's hard to tell what is really broken. One of the most frequent problems is when your computer or laptop does not turn on. Everything can cause that - begin with silly issues with the power supply, after serious fault on the motherboard. That is why You should bring the equipment to the service point, because the fault can be trivial and inexpensive to repair. Even if we do not have a guarantee, but it is our computer still performs quite well, it's worth to fix it.