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

Remote Desktop Proxy Error Checklist: 10 Common Fixes

If you're seeing a proxy error when trying to connect to a remote desktop, you're not alone. Thes...

Windows Defender Version Mismatch: Practical Fix Checklist

If you see a “version mismatch” error in Windows Defender (Microsoft Defender Antivirus), it usua...

Fix Microsoft Store Stuck on Loading After Update

After a Windows update, you may find the Microsoft Store stuck on a loading screen, spinning endl...

Fix Windows Update Authentication Failed Due to Group Policy

You try to run Windows Update and get an error like "Authentication failed" or "0x80070005" – and...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Fix Microsoft Store 502 Bad Gateway & Permission Denied

You open Microsoft Store and see a 502 Bad Gateway error, sometimes accompanied ...