Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When you open Microsoft Store and only see a blank white or gray screen, the app isn't loading co...

You open Microsoft Store, and it hangs on a spinning circle or shows a timeout error. This usuall...

When the Windows Terminal Service (TermService) won't start, remote desktop connections fail and ...

When you run Get-MpComputerStatus or Start-MpScan and see "The ...

Fix Windows Defender Update Error 0x80070643
If you see error 0x80070643 when updating Windows Defender, it usually means the update failed du...

Fix Windows Defender DNS Error After Update
After a Windows Update, you might see a Windows Defender error related to DNS—often something lik...