Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You have a working internet connection—other sites load, email works—but OneDrive shows a sync er...

You click 'Check for updates' and see the progress bar stuck at 0% or a percentage that doesn't m...

If your Microsoft Store apps won't update, or updates get stuck or throw errors, a corrupted cach...

You might see Windows Defender consuming a lot of memory, and then get error code 0x80070002 when...

If you see sync errors or missing data in Microsoft Teams, a version mismatch between your deskto...

If you see an error like “Windows activation file locked by antivirus” or activation repeatedly f...