
Windows Security Troubleshooting Checklist
If Windows security features aren't working as expected—like Windows Defender won't start, update...

If Windows security features aren't working as expected—like Windows Defender won't start, update...

You run a command in the command prompt and get a message like "This version of ... is not compat...

If your Command Prompt text is hard to read, colors look off, or the font has changed unexpectedl...

You open Windows Security and see 'Connection refused' or 'Something went wrong.' Often this happ...

You try to log into a site in Chrome, but it keeps redirecting you back to the login page, or you...

You try to open a file in OneDrive and see a 404 Not Found message, or you get an Access Denied e...