Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Windows Defender Service Unavailable Error

You open Windows Security and see the message 'Windows Defender service unavailable' or 'Windows ...

Fix Windows Defender Blocked by Group Policy Permission Denied

You try to open Windows Defender Security Center or run a scan, but get an error: "Windows Defend...

How to Disable and Re-Enable Windows Search Indexing

Windows Search indexing can sometimes cause high CPU usage, slow performance, or broken search re...

Fix Windows Activation Error 0x80070005: File Locked

When activating Windows, you might see error 0x80070005 with a message that a file is locked. Thi...

Chrome Profile Port Already Allocated: Troubleshooting Checklist

When you try to launch Google Chrome with a custom profile directory (using the --user-data...

How to Fix Command Prompt Blank Screen with No Error
You open Command Prompt, see a blank black window with no prompt or text, and no error message ap...