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

Fixing Windows Update Error 0x80070005 and SFC Scan Issues

You try to run Windows Update but get error 0x80070005. When you run System File Checker (SFC /sc...

How to Fix Limited Connectivity on Windows 11 Wi-Fi

You connect to Wi-Fi but see "Limited connectivity" or "No internet, secured." Yo...

Fix Docker Nginx 502 Bad Gateway Upstream Error

When running Nginx as a reverse proxy in Docker, a 502 Bad Gateway error with 'upstream' ...

How to Fix Windows Explorer Error 0xc0000005 on Restart

If Windows Explorer keeps restarting and you see error 0xc0000005, it usually means a critical pr...

Fix Windows 11 WiFi with Internet but No Network Access

After a network reset, some Windows 11 users find their WiFi connects but shows "No internet&...

Checklist for Troubleshooting Nginx Permission Denied Errors

Understanding the Problem

When Nginx returns a 403 Forbidden or logs an error like ...