Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you see error 0x80070422 when trying to run Windows Update, it usually means Windows can’t con...

After a Windows update, you might see an error that the search module is not found, or the search...

You're trying to connect to a remote desktop through your organization's gateway, but after a lon...

You open Windows Security from Command Prompt and see nothing but a blank window. This can happen...

If you see error 0x80070002 when trying to install Windows updates that are stuck on "pending ins...

If you see the error 'Windows activation failed to start Windows 10' when trying to activate, it ...