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

Windows Update 502 Bad Gateway: Step-by-Step Fix

When you run Windows Update and see a 502 Bad Gateway error, it usually means th...

How to Fix Microsoft Teams Proxy Error on Windows 10

You open Microsoft Teams on Windows 10 and see an error like "Can't connect to proxy server" or "...

Fix Windows Security 404 Not Found Permissions Issue

You open Windows Security and see a 404 Not Found error, or the app won't load at all. Often this...

Fix Windows Defender Connection Refused on Windows 10

When you see "connection refused" while using Windows Defender on Windows 10, it usually means th...

How to Fix Remote Desktop 'Connection Refused' or 'Permission Denied'