Something is using my HDD 100%

[ZKR]

I have a WDC WD4003FZEX-00Z4SA0 4TB black, 2 months old.

Something is consuming 100% of it`s usage, nothing I run is active.
It happens most of the time for long durations (minutes, hours).

Appreciate your help.

 

[Mattios]

Try this:
Go to charms bar and press search, then type view local services.
Once here, stop and disable BITS (Background Intelligent Transfer Service). Also, set windows update checks to manual.

 

[ZKR]

I disabled BITS. Can`t set updates to normal because it annoys me.
I though it helped but now it`s 100% again.