If the 100% disk usage problem persists, try the next method, below. If it’s no longer 100%, you’ve fixed the problem! Or check your computer’s disk usage: Type “task manager” in the Windows search bar and select Task Manager, then in the Processes tab, look at the % at the top of the Disk column. Type in the following command: net.exe stop superfetchĥ) If the command above isn’t valid, try the following one instead: net.exe stop sysmainĦ) Wait for a few minutes to see if your computer starts performing better. Here’s how to stop this service:ġ) On your keyboard, press Windows logo key, type command prompt, then select Run as administrator.Ģ) Click Yes at the User Account Control prompt.ģ) The command prompt will once again display.

However, it has been identified as a potential cause of disk performance issues in Windows 8 and later versions of Windows, including Windows 10. SuperFetch helps to decrease boot time and make must-load programs more efficiently. You may not need to try them all just work your way down the list until you find the one that works for you. Here are a few fixes that have helped other users resolve their Windows 10 100% disk usage problem. 8 fixes for 100% disk usage on Windows 10 The good news is, it’s usually not a hard problem to fix. If your Windows 10 Task Manager shows 100% disk usage, something is causing your hard drive to over-work.

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