Knowledge base for software setup, errors, and daily tool work.

Windows Activation 502 Bad Gateway: Troubleshooting Checklist

If you're seeing a '502 Bad Gateway' error when trying to activate Windows, the problem is usuall...

Fix Remote Desktop Login Loop Caused by Group Policy Settings

You log in to a remote desktop, see the desktop for a second, then get kicked back to the login s...

Fix Chrome Enterprise Authentication Failed Error

If Chrome in your organization shows an "authentication failed" error when trying to sign in or a...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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

Fix Windows Defender DNS Error Configuration

If you see an error in Windows Defender that mentions DNS configuration, it usually means Windows...

Remote Desktop Security Configuration Checklist

If you've set up Remote Desktop (RDP) and are worried about security—or if you've already seen su...