[Aiken]

1) Faulty windows. Huge uptimes are not intrinsical to non-server versions of windows (win 2000 pro or XP). Reinstall.

2) Disable Task Scheduling service.

3) Look in autorun folders and registry keys for small scripts (.js or .vbs).

4) Virus or spyware.

5) Try to limit you system & app logs (Administration/Event Viewer). Sometimes it helps.