This page is a collection of troubleshooting techniques to solve the issue where Windows 10 is using 100% disk usage.

Feel free to add other or additional troubleshooting steps.

This Wiki page is derived from an initial question on the Windows 10 Hardware & Performance forum.

Root Causes

1. Type of disk

See: Task Manager might show 100% disk utilization on Windows 10 devices with Message Signaled Interrupt (MSI) mode enabled

2. Window 10 Tips

Check settings, system, notifications, and turning off "show me tips about Windows."

3. Windows Search & Prefetch


4. Google Chrome & Skype