Its been getting better but I don't know how to solve it. I don't think its a virus because I've done scans and everything. I did hijack this, virus scan (AVG Free), and spybot. When I start my computer it is very slow and my CPU usage goes very high. Then I try to play Team Fortress 2 and after a minute my CPU usage goes up to 80-100 percent and eventually my computer shuts off. When I start it, it says that it has closed with an error, like what happens when I hold down the power off button on the front of my pc. I had just done a complete system restore( reinstalled vista) about 2 weeks ago when I tried to install ubuntu and it installed over vista and I didnt have any backups. Please help this is so annoying.
PC SPECS:
Manufacturer: MY OWN CREATION
Processor: Intel® Core2 Duo CPU E8400 @ 3.00GHz (2 CPUs), ~3.0GHz
Memory: 4094MB RAM
Hard Drive: 320 GB
Video Card: NVIDIA GeForce 8800 GT
Monitor: Generic PnP Monitor
Sound Card: Speakers (Realtek High Definition Audio)
Keyboard: USB Root Hub
Operating System: Windows Vista™ Ultimate (6.0, Build 6000) (6000.vista_gdr.071023-1545)
Motherboard: GIGABYTE GA-EP35-DS3L LGA 775 Intel P35 ATX Intel Motherboard
Computer Case: Antec sonata 3 with 500watt power supply