Checklists for software errors, setup, and tool workflows.

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Fixing Windows Security Connection Timeout on Sign-In

You’re trying to sign in to Windows and the “Windows Security” window appears, but it eventually ...

Fix 'Windows Defender Command Not Found Access Denied'

You type MpCmdRun.exe -Scan -ScanType 2 or another Defender command in Command Promp...

Fix Windows Defender Not Starting Due to Dependency Conflict

If Windows Defender won't start and you see an error about a dependency service or group failed t...

Fix Windows Defender Sync Not Working on Mac

If you use Windows Defender on your Mac and notice that security settings or scan history aren't ...

How to Fix PuTTY SSH Connection Refused Error

You open PuTTY, enter your server's IP and port, click Open, and get "Connection refused"...

Fix Windows Defender 404 Not Found Error on Windows 10
You click to open Windows Defender Security Center and see a 404 page, or the Settings app shows ...