I fought this battle for a long time, tried every fix on the web I could find...IE turn off superfetch, 14 Tricks to Solve 100% Drive Usage in Windows 10, change this setting in the registry, etc, etc. Even bought a new hard drive..nothing worked. My machine
has 3 internal drives plus 2 external...mostly occurred on one drive, but the issue would float to others now and then.
I'm a coder and working with computers since DOS/1982, so have a reasonably good command...this issue haunted me. Drive would show 100% in Task Manager with 0 bits of data transfer, lock up the machine for 1 or 2 minutes, work right for a little while,
sometimes only 5 min, sometimes hours. I ran Check in the Tools under Properties, CHKDSK in CMD...nothing worked.
Here's what my issue was that NO post I read ever mentioned....BAD POWER SUPPLY. Makes no sense to me, but my power supply started shutting off in the middle of my work....then would work after a short rest (for a while), then turn off again. Put up with
that for a day than replaced it and low and behold...everyone of my drives are working like they should...I AM AMAZED! AND VERY HAPPY! Posting this in case it helps someone.