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

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED Proxy Error

When Chrome shows ERR_TUNNEL_CONNECTION_FAILED, it usually means a proxy connect...

Chrome 502 Bad Gateway Error: Causes and Fixes

You're browsing in Chrome and suddenly see 502 Bad Gateway. This error means tha...

Fix BitLocker Path Not Found on External Drive

When you connect a BitLocker-encrypted external drive and see "path not found" or "The system can...

Fix Visual Studio Installer Not Responding on Windows 11

If you're on Windows 11 and the Visual Studio Installer stops responding or freezes during launch...

Fix Windows Defender Stuck on Loading Black Screen

If Windows Defender (Microsoft Defender Antivirus) hangs on a black screen with a spinning or fro...

How to Fix '404 Not Found' Error in Windows Command Prompt