Basicaly I have a Aspire 6920G:
Operating System: Genuine Windows Vista Home Premium 32Bit
Processor: Intel Core2 Duo T5750 (2.0GHz, 667MHz FSB, 2MB L2 Cache)
Memory: 4GB DDR2 RAM (2*2048MB Configuration)
Hard Drive: 250GB SATA HDD
Graphics Card: Mobile Intel® PM965 Express Chipset with Nvidia® GeForce® 9500M GS 512MB VRAM
I was having problems whilst running games where they would randomly slow down to an unplayable state, I however tracked this problem down to AudioDiag.exe and removing my sound drivers fixed this problem. However recently I have been having massive slow downs again. Games run smooth (50-60 FPS) however randomly my entire computer slows down and games become unplayable, programmes take ages to load. When I load up Task Manager my CPU usage is at 100% but no programmes are using abnormal amounts of CPU. So far the only fix (temp) is to just wait and stare at the CPU usage till it goes back below 10% (the programmes list by CPU doesn't seem to change much, if at all). Programmes then resume running normaly and my FPS returns to normal, however shortly after the problem returns.
So far I've tried virus scans, Spybot/adware scans, removed my anti-virus software, different graphics drivers but nothing has worked...It's become a real problem when trying to play games and was hoping someone could help me figure out what's causing the issue.