100% disk on task manager. Wtf?

id just run a windows refresh as it leaves your files intact. better than narrowing it down if you cant identify it in task manager.

What do you mean run a Windows refresh how is that done?

It's a systems thing that's using the disk.

System and service host network service

try this : settings, system, notifications, and turning off "show me tips about Windows."

if no bueno just refresh/reset below:

start menu > settings > update & security > recovery >reset this pc > get started > keep my files.

Thanks

Har har, I've never done that before, sue me.