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

Fix Windows Update Login Loop After Configuration Settings

You restart your computer after a Windows update, and instead of reaching the desktop, you see th...

Fix 'Port Already Allocated' Error in Windows Defender

You open Windows Defender Security Center or try to run a scan, and you see an error saying a por...

Fix PostgreSQL Connection Refused on Port 5432

When you see psql: error: connection to server at ... failed: Connection refused on ...

Fix Remote Desktop Authentication Failed Due to Group Policy

You try to connect to a remote desktop and get an authentication failed error. This often happens...

BitLocker Recovery Key Not Accepted: Fix Authentication Failed Error

Fix 'Port Already Allocated' Error in Windows Defender on Windows 10

You may see an error like "Windows Defender Firewall cannot use port X because it is already allo...