Computer Crashes.

[Death.RunningVerminator]

It's relatively unusual for a computer to crash all of the time but here are some of the common reasons why it does:

1. Dust in various heatsinks causing CPU or graphicas card to overheat - or possibly a failed fan.
2. Faulty memory.
3. Viruses and buggy software although from your description I don't think it is this.
4. Faulty motherboard, graphics card or power supply.

Cleaning your heatsinks is easy to do. Blow air into them until they are clean - generally best to do this outside. Check that the fans are spinning when the computer is powered on.

I don't think an of that is the problem. When i restart my computer, a notice thing usually pops up. It tells me that some of my drivers are out of date, and also says that i need the DirectX version 9. But i can never get Direct X without some downloaded crap software that asks for 30 bucks. D:

Meh, maybe i just have to cope with it.