My HP Pavilion 2.8 ghz with 512 meg ram and an 80 gig hard drive is driving me nuts! It started running slow and then crashing, I went to task manager and noticed that the cpu performance was at 100%. I closed all unnecessay programs, but it wouldn't go down. i restarted the system and it still is at 100%. please advise. I am running Zone Alarm Pro firewall and AVG 7.0 virus protection. I have a
spyware program PC Bugdoctor.