System Freeze Troubleshooter
Use this guided checker to identify likely causes of computer freezes, lockups, and unresponsive apps.
Diagnostic progress
0 of 4 steps saved
1 When does the freeze happen? ⌄
Choose the closest match:
2 Check system resource usage ⌄
Open Task Manager with Ctrl + Shift + Esc and check the Processes tab while the issue is happening.
What is using the most resources?
3 Clear temporary files and restart ⌄
Press Windows + R, enter each location below one at a time, and delete files that Windows allows you to remove.
%temp%
temp
prefetch
temp
prefetch
Skip any file currently in use. Empty the Recycle Bin afterward, then restart the computer before testing again.
Did this improve the freezing?
4 Check hardware and drivers ⌄
Look for overheating, recently installed drivers, unusual fan noise, or storage errors. Disconnect non-essential USB devices before testing again.
What did you find?
5 Generate suggested fixes ⌄
Create a summary based on your answers and review the recommended next steps.
Summary & Suggested Fixes
These suggestions are based on the choices you selected.
If the computer repeatedly freezes, overheats, makes unusual drive noises, or cannot start reliably, back up important files as soon as possible and consider professional hardware support.
