Hey Guys
I am one of the victims too, have been trying different things. Today I came across Microsoft Office Click to run service, I stopped and disabled this service, Have been monitoring my disk activity , it is staying between 1 to 18 percent now, I ran many office apps soon after, the above service started again but amazingly Disk is relaxing now.
Check this trick guys, I don't have any justification for this service causing this problem but there is no harm trying..
Cheers
Thanks will try and keep you guys posted.we have to help each other as Microsoft don't seem to care anymore. Even the HP guy I talked with, they said this problem is a known issue and exists mainly on Windows 10 home edition. It seems to be true as I don't have any such Disk Usage issue on my office laptop which is also running a Windows 10 but a Pro edition.