Windows 8: 100% disk active time, no actual data transferred [duplicate]

Possible Duplicate:
Extremely high disk activity without any real usage

Occasionally, like several times an hour, my hard drive will appear to lock up: Task Manager will show 100% active time with read and write speeds of 0.

I can still switch between open windows, but anything that requires a disk access will stall for around a minute until the hard disk starts working properly again.

It happens at apparently random intervals, and only happens in Windows 8. Not 7, nor Linux.

It is probably not a problem with the disk itself:

  1. This is a relatively new hard drive, and S.M.A.R.T. is showing no errors.
  2. Only happens in Windows 8: not any other OS that has used the same partition, or different partitions.

So, what is going on? How can I fix this?

Note: this is a different problem then this one: Extremely high disk activity without any real usage

My task manager would look similar, but Average Response Time, Read Speed, and Write Speed would all be 0.


Use xperf from the WPT (part of the Windows 8 SDK) to trace disk IO:

http://blogs.msdn.com/b/ntdebugging/archive/2009/08/17/xperf-to-investigate-slow-i-o-issues.aspx