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

Fix Windows Defender Real-Time Protection Not Turning On After Update

After a Windows Update, you might find that Windows Defender's real-time protection is stuck ...

How to Turn On Bluetooth in Windows 11: Quick Fixes

You open Quick Settings, click the Bluetooth icon, and nothing happens—or the toggle is grayed ou...

Fix 'port already allocated' Error in Docker Compose

You run docker compose up and see port is already allocated. This means...

DNS Probe Finished NXDOMAIN: Internet Connection but No Browsing Fix

You see the error 'DNS probe finished NXDOMAIN' on Chrome or other browsers, yet your int...

Increase Node.js Memory Limit for npm Scripts

When running npm scripts that handle large files, complex builds, or memory-intensive operations,...

Fix 'pip install' Permission Denied on Ubuntu