Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When you see the message "Windows activation server is not available" while trying to activate Wi...

You open Microsoft Teams, try to sign in, and get an 'Authentication failed' error. This usually ...

If you see 'Sync paused – permission denied' in Microsoft Edge, your profile data—bookmarks, pass...

If Windows Search stops returning results or indexing seems stuck, the log files can tell you why...

You click Check for updates and after a while get error 0x80070002. It usually means Windows Upda...

You've waited for a Windows update to finish, but it's stuck at 100% for minutes or hours. This i...