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

Windows 11 Wi-Fi Connected but No Internet: Step-by-Step Fix

You're connected to Wi-Fi, but websites won't load and apps show no internet. This is a c...

Fix ERR_NAME_NOT_RESOLVED with CMD: Step-by-Step Guide

When you see ERR_NAME_NOT_RESOLVED in your browser, it usually means your computer can't tran...

Bluetooth Hardware Not Found on Windows 11: Fixes

You open Bluetooth settings in Windows 11 and see 'Bluetooth hardware not found' – no swi...

Fix Nginx 'upstream connection refused' When Talking to PHP-FPM

You're seeing upstream connection refused in your Nginx error log, and your site...

Fix Docker Volume Permission Denied on Mac

Windows 11 Update Stuck at 0%? Run System File Checker First

If your Windows 11 update is stuck at 0% for more than 30 minutes, corrupted system files are a c...