Super computer slowed under vista ultimate

[eliotmc]

Hello all,
I am under vista ultimate,my super computer is idle

proc-> Intel Core 2quad Q6600 2.4GHz
ram-> 2 gb
feat-> visa edition sp1 32bits

It is about a week when, I had a malware scan with byte's, a scan with avast and a scan with spyware terminator. I cleaned with CCleaner and tune up utilities 2008.
But nothing is working out.
please help.

[Myron]

You just try to restore your system to the previous date, and remove all the junk from the main drive from where system boot, such as C drive.