100% disk usage on Windows 8

Hi Alan,
In order to analyze it please provide us with diagnostic output (run it after inducing described behavior) using this tool and please add detailed description of issue.
Thanks

First noticed this a year ago and a tech support disabled Windows Search (local services). Recently I was working with no internet connection and noticed 100% disk usage with serious performance degradation. Temporarily solved the problem by disabling BITS local service.

Problem resumed a few days later - cannot tie to an update or download event. Have tried all the suggestions in microsoft forums except removing 3rd-party anti-virus (AVG).

Any suggestions appreciated. It sounds as if this is a real issue for many PC users with no obvious solution.

Hi Alan,
In order to analyze it please provide us with diagnostic output (run it after inducing described behavior) using this tool and please add detailed description of issue.
Thanks