Are both sticks identical?

Your HJT log looks clean.

I recon you can now mark this thread as solved if you are happy with how your PC is running. :)

I agree and will be offering no further help in this thread.

If the OP wants to act like a baby who has lost his rattle then I want no part of it.

%99.9 it's the graphics card! I have seen symptoms like that before and it was always a failing graphics card, usually caused by overheating.
If it had been your monitor then it wouldn't have shown...

No problem, we will get to the root cause one way or another. :)

A format seems to be about the only thing left to do. Do you actually have a windows cd?

Download Malwarebytes' Anti-Malware (http://www.majorgeeks.com/Malwarebyt...are_d5756.html) to your desktop.

* Double-click mbam-setup.exe and follow the prompts to install the program.
* At the...

It's not bad as such, but it's not correct.

One more thing to try, internet settings, homepage, set it to http:\www.google.com and see if it helps.
I noticed in your combofix log that something...

Let's hope a clean up will sort it as it is by far the cheapest thing to try first.

You need to figure out why it keeps turning off. The first thing that could be causing it is an overheating CPU. You need to get inside your pc and make sure that the CPU fan is working and you also...

If you tell me what mobo you have......

Try removing the mains power cable from your pc, the whip the side off and remove the bios battery for about a minute. The bios battery will be a round, silver object with CR2032 printed on it.
...

It sounds like your machine is seriously infected. If you have actually got a Vista DVD then a repair install may be the way to go. If you don't have a Vista DVD (more likely) then you really are...

It seems you have found the root of the problem. Corrupted ram will write corrupted data to the hard drive so run a scandisk on it and see if that will fix any outstanding errors.