Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix 'Windows Defender Failed to Start Due to Group Policy' Error

You may see an error saying 'Windows Defender failed to start due to group policy' when trying to...

How to Clear Windows Update Cache to Fix Update Errors

When Windows Update gets stuck at a certain percentage or throws an error code (like 0x80070002, ...

Fix Windows Security 504 Gateway Timeout During Windows Update

If you see a "504 Gateway Timeout" error in Windows Security while trying to run Windows Update, ...

Windows Search Service Troubleshooting Checklist

When Windows Search stops returning results, uses excessive CPU, or fails to index files, the cau...

How to Fix PuTTY SSH Connection Refused Error

You open PuTTY, enter your server's IP and port, click Open, and get "Connection refused"...

Fix Windows Terminal Auto-Start Permission Denied Error
If you've set Windows Terminal to launch automatically at login but get a 'permission denied' err...