Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I have Windows 8 installed on PC, and another Windows 8 installed inside virtual computer. On virtual computer - without antivirus. In both cases, I see that OS intensively works with the hard disk at idle time. If I continue to work with computer, it stops this, and resumes later.

It looks like some background maintenance process, like hard disk scanning. What part of Windows 8 is responsible for this? Is it possible to remove/reduce this effect?

share|improve this question

2 Answers 2

up vote 1 down vote accepted

Windows has an idle maintenance task.

To stop it, open the Task Scheduler (run: taskschd.msc) and go to Task Scheduler -> Microsoft -> Windows -> Task Scheduler and disable the Idle Maintenance task:

taskschd.msc

share|improve this answer
    
That's it - changing maintenance start timeout did the trick. It is impossible to disable it completely, because it is re-enabled automatically after some time. But changing the properties works. –  Alex Farber May 20 '13 at 9:39

The activity you are observing is most likely disk cleanup and defragmentation. Since Windows Vista there is no need for manual defragmentation as it is done automatically when Windows notices idle time.

I don't know how to deactivate this but this article looks promising.

share|improve this answer
    
Good guess, but I think there is another reason. I found "Defragment and Optimize Drives" command, it contains Schedule optimization option, which is set to "Weekly". In my case, it is definetely not weekly... –  Alex Farber May 13 '13 at 8:23
    
Try the Process Explorer then. It shows you which files are accessed by which process. –  André Stannek May 13 '13 at 8:29
    
Actually, there are a lot of candidates in the Task Scheduler. For example, Windows Defender. I will try to disable some of sceduled tasks and see what happens. –  Alex Farber May 13 '13 at 8:34

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.