computer suddenly insanely slow

[kurosh]

I went to bed last night with my computer working fine. Woke up this morning and it's so slow that it takes 10 minutes for mozilla to open up.

Task manager shows CPU usage above 90% at all times. System is using up around 25%, explorer 20% and the rest split among various other processes. I haven't installed anything new. I don't see any new processes. I don't see any new services running.

I checked msconfig and there is nothing new there. I created a new user account and there's still the same problem.

I'm running Sygate Personal Firewall, ProcessGuard, SnoopFree and AVG. Virus scan detects nothing. It's a macbook pro that I'm running windows on. w t f