Vista 32 high processor usage and choppy sound

[Guest]

I have spent hours searching google for a problem like im having but to no avail. Recently I started my pc and when i logged in I noticed that it was very sluggish, after trying to play any audio I also noticed that the sound is choppy, similar to the sound of a needle scratching over vinal. I have disabled almost all boot programs, have updated video drivers. When I look in task manager the cpu is at a constant 100% usage but no running processes are using that much, no where near that much infact. After the problem started I could fix it temporaraly by using system restore, which makes the system stable for about a week.

My System specs are:
AMD Phenom x2 9850
4 gigs of performance ram
Nvidia 9800 GT x2
Vista SP1

 

[Guest]

I forgot to mention I have Kaspersky Internet Security 2010 installed and updated which runs daily scans

 

[loneninja]

Why aren't you running SP 2? Try reinstalling your sound drivers to fix the audio thing.

 

[Guest]

Had alot of issue's with SP2 on another PC so avoided it on this 1. As for the sound driver, I suspect the choopness is because of the cpu usage.