Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

After a Chrome update, you might see an error saying the browser path cannot be found. This usual...

You open Windows Security and see the message: "Windows Security failed to start. Corrupted syste...

You see a message like 'Windows Defender Authentication Failed' when trying to open or update Win...

Windows Defender (Microsoft Defender Antivirus) sometimes uses more memory than expected, especia...

You open the Start menu, search for Windows Security, and nothing shows up. Or you see a message ...

When Windows Search fails to connect to its online services—like Cortana or web suggestions—it of...