Windows 10 Disk usage 100%

disk-activitywindows

In process tab the disk usage is always about 14%, but on this performance Disk 0 is always 100%:

usage

what is the reason for this?

It's a HDD. I am not even doing anything and its always 100%. You think this is a bug?

I have tried disabling superfetch & Windows search (even though it doesn't show it even using quarter under processes tab).

I am pretty sure this didn't happen in Windows 7. Also I tried running chkdsk and I still see this behaviour.

Best Answer

I've been getting this very high disk usage for a long period since I've upgraded from Windows8. In my case, it was caused by "Background Intelligent Transfer service". This is a service where you can't simply disable at start up, and have to terminate it via the command prompt in administrator mode

Click on Windows icon > Command Prompt > Right-click > More > Run as Administrator Type -> net stop bits

This should terminate the service mentioned above, and you should see lower disk usage briefly. This issue comes back from time to time. I had to run this periodically when my computer feels slow and verify that the high disk usage is causing it.

Please note, I haven't had to do this recently after a few Windows update. I am currently on "Version 1511 (OS Build 10586.63)"