After a reboot my PC runs fine for a while (anywhere between 30mins to 3hrs). Then I'll notice that the fan is running at full pelt constantly.
Everytime this happens, the same couple of things occur: 1) When I click on 'My Computer' I get a blank window with the animated torch icon, searching but never finding anything to display.
2) When I run Task Manager, the CPU resource is divided 50% 'System Idle Process' and 50% 'System'
There does not seem to be a particular program or event that triggers this. Even tonight, it was working fine while I was browsing - then I left the PC on and watched TV for half an hour, and when I returned to it, there it was again!
PC is: Higrade Xperian P4 3.06GHz (with HT) 1GB Ram Windows Xp Media Center 2002 Edition
What System product is it that is using the 50% If its svchost.exe stop your automatic up-dates from Microsoft,And download them manually.you may have to reboot computer after turning off automatic updates.