Checklists for software errors, setup, and tool workflows.

Fix Windows Defender SSL Certificate Errors from Antivirus Interference

You might see SSL certificate errors in your browser or applications even when the certificate is...

How to Reset Windows Activation Cache with a Script

If Windows shows activation errors after a hardware change or update, the activation cache might ...

Windows Defender 502 Bad Gateway: Troubleshooting Checklist

If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...

Fix Windows Update Stuck at 100% Not Finishing

You wait for a Windows update to finish, the progress bar hits 100%, and then nothing happens for...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

How to Unlock a File Locked by Windows Security

You try to open, move, or delete a file, but Windows shows a message like "This file is blocked b...