For the past few days I have found that my 1gig Celeron is running at 100% all the time. I have deleted running items one by one by press Crtl, Alt, Del but still no drop in usage. I have gone through previous postings to see if/what recommendations but with no luck, virus programme. i.e. AVG does not show any virus?s and I have also ran online virus programmes.
just click on the process tab in task manager and then click on the cpu tag to arrange them in order of usage, so they are at the top of the list. (you might need to click twice to get them at the top)
The "system idle process" is intended to keep the CPU busy when it has no tasks to perform, it will maintain the CPU at 100% usage regardless of what you have running. This, perhaps surprisingly, makes your computer work better.
Pressing Ctrl,Alt & Delete together will bring up the task manager where you can check which tasks are running and terminate any that may be causing problems, this is the same for all versions of Windows. Be careful if you terminate any tasks, as you can cause your computer to stop responding if you shut down something important.