Software comparisons, alternatives, and tool decision notes.

Fix Windows Update Connection Refused When Using VPN

If you see a "connection refused" error when running Windows Update while connected to a VPN, it'...

Fix Windows Defender Connection Refused via Group Policy

If you see a "connection refused" error when trying to open Windows Defender Security Center or r...

How to Fix Chrome Update Failed and Check Manually

When Chrome fails to update automatically, you might see an error like "Update failed" or "Update...

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 0x800704cf

You open Windows Defender and see error code 0x800704cf. This usually means Windows Defender can’...

Fix PowerShell 404 Error When Using Invoke-WebRequest

When you run Invoke-WebRequest in PowerShell and get a 404 Not Found