Forum Discussion
GageWilder
Apr 17, 2026Iron Contributor
Windows 11 disk usage 100% even with no apps open, very laggy
My disk usage hits 100% right after boot with no apps running. The system is extremely slow, even opening a folder takes a long time. Checked for bad sectors and disabled Superfetch, still the same.
JacobBrown
Apr 18, 2026Iron Contributor
Disable the SysMain and Windows Search services in Services Manager, and run the chkdsk /f /r command to check for disk errors.