Fix 100 Percent Disk Usage on Windows 10 Fall Creators Update | Windows101Tricks | Scoop.it
From windows101tricks.com - November 26, 2017 12:10 PM

There Are Various Reason Behind 100 Percent Disk Usage on Windows 10 Such As Faulty Disk Drive, corrupted system files, Driver incompatibility, etc. To Fix this high Disk Usage Problem Run CHKDSK Utility, Disable Windows Search, Superfetch Service, Fix StorAHCI.sys driver, Reset Virtual memory etc.