Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you've reset your Task Scheduler settings—either intentionally or after a system restore—you m...

If you notice that the Task Scheduler service (Schedule.exe or svchost.exe hosting the service) i...

If you see error 0x80070422 when opening Windows Defender or running a scan, the message typicall...

If Windows Defender won't start, you may see an error like "This app has been turned off" or "Win...

If files aren't syncing, icons are stuck, or you see error messages, this checklist walks you thr...

You try to activate Windows or install an update, and get error 0x80070003. It often means Window...