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

Fix Microsoft Store Not Working Due to Proxy Settings

If the Microsoft Store won't load, shows errors, or fails to download apps, your proxy settings m...

Fix OneDrive Not Signing In Due to Network Firewall

You try to sign in to OneDrive, but it fails with a network error. Often, a firewall—on your comp...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED Caused by Antivirus

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

How to Enable Command Prompt Auto Start on Startup in Windows

If you need Command Prompt to open automatically every time you log into Windows—for quick access...

Fix Microsoft Teams 502 Bad Gateway Error – Step-by-Step

If you see a 502 Bad Gateway error in Microsoft Teams, it usually means a server...

BitLocker DNS Error 0x80072f8f: Causes and Fixes