Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Windows Security Service Disabled by Group Policy

If you see "Windows Security service is disabled by group policy" or find that Windows Security i...

Outlook Sync Issues with IMAP Accounts: How to Fix

If you use an IMAP account in Outlook and find that emails aren't showing up, sent items disappea...

How to Fix a File Locked by Windows Security in Windows 10

You try to open or run a file, and Windows Security blocks it with a message like "Windows protec...

Fix Remote Desktop Connection Timeout Errors

When your Remote Desktop connection drops with a timeout error, it usually means the session ende...

Fix Microsoft Store 404 Not Found Error on Reinstall

When you try to reinstall an app from the Microsoft Store and get a 404 Not Found

Fix Windows Defender Real-Time Protection Not Working with Network Error
You open Windows Security and see a yellow warning that real-time protection is off. When you try...