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

Windows Security Firewall Configuration Checklist

If you've ever enabled the Windows Firewall and suddenly lost access to a shared printer or could...

Fix Windows Defender Proxy Error 0x80070422

If you see error 0x80070422 when opening Windows Defender or running a scan, it usually means the...

Fix Windows Update Service Stuck on Starting Repair

You restart your PC after a Windows Update failure, and the screen says 'Starting repair' — but i...

Fix Maven Dependency Resolution Failed in IntelliJ

How to Fix Windows Search 404 Errors

If you see a '404 Not Found' error when using Windows Search, it usually means the search index c...

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

When you try to activate Windows and see a 502 Bad Gateway error, it usually means the activation...