Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're seeing a warning that Windows Defender is turned off, or you can't access its settings,...

After a Windows update, you may see a BitLocker prompt saying your recovery token has expired. Th...

If you see error 0x8007007b when trying to activate Windows, it usually means the activation serv...

If you see "Windows Security service stopped manually" in Event Viewer or your antivirus reports ...

If Windows Defender opens to a blank white or gray screen, it's often a permissions problem. This...

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