Forum Discussion
How to Fix 100% Disk or CPU Usage in Windows 11
If your Windows 11 PC suddenly becomes slow, freezes randomly, or takes forever to open apps, there’s a good chance your system is suffering from 100% disk usage or high CPU usage. This is one of the...
I’ve seen this happen quite a few times on Windows 11 systems. In many cases, the issue is caused by background services, startup apps, Windows Search indexing, or outdated drivers consuming too many resources. A quick cleanup of startup programs and checking Task Manager usually helps identify the main culprit. Updating drivers and running a system file check also fixed the issue for me on one PC where CPU usage stayed at 100% constantly.