I never turn my PC off. The temperature reaches 51 degrees Celsius and I've never had the blue screen.

Its a ghost dude.

gah, i think i know the problem now. it has to be something with the graphics card, because if i run tb with shaders i get 2 fps. and ive never had anything below 30 before with shaders.
edit: hm... thats very odd... i just went in my task manager and it said toribash was up even though i had just closed it. so i did end process and i just brought up tb again and it works fine now. ._.

its not a virus its a script, the reson why it shut down is this vb script.

shutdown -s -f -t 20 -c Windows has a Fatal error

simpley copy and paste that in notepad and save it as shutdown.vbs.
I made a prank script with this code in, but it is terrorising.
I made it to get back at some one who "broke" my computer

if you was searching the web at the time then a webpage you went on had

<script>alert(document.location=[location of shutdown.vbs on url])</script>

this would shutdown your pc without even haveing to download anything
tha also means that website has a XSS (site cross scripting) vunrability.

Also i dont have any antivirus software, and i have a uptime of 2000+ hours easly.

Read the first post. He was sitting on his bed when he saw the blue screen.

tagknife doesn't that mean that your pc will shutdown after 20 seconds of having a fatal error message? anyway yea i've had that problem with toribash before. it can stay running even after you close the game itself, just gotta watch that task manager for any open processes you know shouldn't be.

Do you have a NOTEBOOK?
Cause the newer notebooks still have some difficulties with the hybrid graphics and all that...
No matter what version of my nvidia driver I install, I still get bluescreens sometimes, very randomly...
Next time you get a bluescreen, try and read what it says!

Like:
HDD error
or Graphic driver needs to be updated
...

That kinda stuff...

BSOD's have very little interesting information to state, go to your manufacturers website and get the latest drivers, also check out thier FAQ.

Why did no one but Bliza think to mention drivers until now?

because drivers dont usually affect bsod's unless you JUST reinstalled a driver and got a bsod. seems more logical to think of it as a hardware issue when no other information about reinstalling drivers and such is stated. it could infact be a driver issue however it doesn't seem like it would be unless he installed an improper driver for his system.

In my experiance drivers can have allot to do with it, in example:

Once we had an old MB BIOS and one of the RAM slots was giving bad reads, we only notiecd affter server BSOD's about 2 and a half mins into run time, or when opening RAM heavy apps.

On my computer I got repeated BSOD's with simply a random installation glitch on my graphics card drivers, however only affter opening any full screen game.

My partners computer had a small problem with the IGPU conflicting with the GPU, and I had to download the latest BIOS to dissable the IGPU for the GPU to work, however this problem only started effcting him affter serveral months of no problems.

In short, drivers are very relevent, and should be the first consideration when there is a system crash or faliure, in most cases imo.