When was the last time temp files were deleted from the computer?
Have you run Adaware or Spybot recently?
If not - run them from safe mode after you update their definitions.
If you do not already have them installed get them, download them, update them and run them from safe mode:
Ad-Aware SE Personal - freeware http://fileforum.betanews.com/detail/Adawa...nal/965718306/1
Spybot S&D: http://www.safer-networking.org/en/index.html
Be sure to enable “Teatimer” which gives you realtime protection against malware invasion. (absolutely necessary)
Follow the tutorial you will find here:
Slow Computer Checklist
Because many members post about their computer responding slowly, BC is posting a summary checklist of general steps a member can take to resolve this problem, and briefly discussing the three most common causes: malware, uncontrolled applications, and lack of maintenance. http://www.bleepingcomputer.com/forums/t/44690/slow-computer/