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

Windows Security 502 Bad Gateway: Troubleshooting Checklist

If you see a 502 Bad Gateway error when opening Windows Security, it usually means the app can't ...

Windows Defender High Memory Usage Troubleshooting Checklist

Windows Defender (Microsoft Defender Antivirus) sometimes uses more memory than expected, especia...

Fix Windows Search Returning 404 Not Found in Command Prompt

If you see a "404 Not Found" error when using Windows Search from the Command Prompt, it usually ...

Checklist to Fix Windows Update Port Allocation Error

When Windows Update fails with a port allocation error, it usually means another program is using...

How to Bypass Go Modules Proxy for Local Packages

When working with Go modules, the default proxy (proxy.golang.org) speeds up builds but can inter...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...