Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix 'Windows Not Genuine' Error After Update

After a Windows update, you might see a message that Windows is not genuine, even though it was a...

Fix Windows Defender Token Expired Error After Reinstall

After reinstalling Windows or your security software, you might see a “token expired” error in Wi...

Fix Windows Update Token Expired Error 0x80070057

You see error code 0x80070057 when trying to run Windows Update, often with a message about a tok...

Fix Windows Search Authentication Failed After Password Change

After changing your Windows password, you may see an error like “Windows Search authentication fa...

Fix 'Permission Denied' When Running pip install in Command Prompt

When you try to run pip install somepackage in Command Prompt and get a Permis...

Fix Windows Security Real-Time Protection Not Working
If you see a yellow warning in Windows Security that says "Real-time protection is off" or it tur...