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

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED Caused by Antivirus

When Chrome shows ERR_TUNNEL_CONNECTION_FAILED, it usually means a secure tunnel...

Enable Chrome Profile Backup Before Migration: Step-by-Step

If you're planning to move Chrome to a new computer, simply copying the profile folder may fail i...

Fix Outlook Authentication Failed: App Password Not Working

If you're seeing an authentication failed error in Outlook and your app password...

How to Fix systemd Service Restarting Repeatedly Error

Fix Windows Search Port Already Allocated Error

When you see "port already allocated" while using Windows Search, it usually means another proces...

Fix Port Already Allocated Error in Windows Security

If you see a 'port already allocated' error when starting a Windows Security-related service or a...