8. Disable Prefetch and Superfetch
This addresses 100% disk usage during idle in windows 10, even if you’ve already disabled the superfetching service.
Disable prefetch and superfetch regedit
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters
EnablePrefetcher
DWORD
0
EnableSuperfetcher
DWORD
0
Updated: 2021-02-19 Reference