Checklists for software errors, setup, and tool workflows.

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Fix Windows Defender Error 0x80070643 on macOS

If you see error 0x80070643 when installing or updating Windows Defender on a Mac (via Parallels,...

SSL Certificate Error in Windows Defender: Troubleshooting Checklist

If you see an SSL certificate error when Windows Defender tries to update or scan, it usually poi...

Fix Windows Activation Invalid Configuration Registry Error

You try to activate Windows, but instead get an error message saying the activation configuration...

Fix Windows Security Real-Time Protection Turning Off Automatically

If you notice Windows Security's real-time protection keeps turning off by itself, your PC may be...

How to Fix Git SSL Certificate Problem

If you see an error like fatal: unable to access 'https://...': SSL certificate problem: un...

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...