Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If OneDrive fails to sync when you start your computer, you're not alone. This issue often appear...

If you see "Windows Defender service not running" or a red warning in Security Center, the underl...

You click Chrome and nothing happens, or you see an error about your profile not opening. This us...

If Windows Update is stuck downloading updates, keeps failing with error codes, or won't start at...

If you see error 0x8004deb4 in OneDrive after a recent update, it usually means the app can't aut...

If Microsoft Store won't start, you're not alone. This checklist walks through the most common fi...