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

Windows 11 Activation Error: Product Key Blocked – Fixes

You see “Product key blocked” during Windows 11 activation. This usually means the key is tied to...

Docker Compose Env File Not Found: Troubleshooting Checklist

SSH Permission Denied (Publickey) on EC2: Setup Fixes

If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...

How to Fix Windows Defender Real-Time Protection Turned Off

You open Windows Security and see that real-time protection is off, even though you didn't change...

Fix Windows Activation Error 0xc004c003 Without Internet

You see error 0xc004c003 when trying to activate Windows, and your device either has no internet ...

Chrome Extension Crash Troubleshooting Guide

When a Chrome extension crashes repeatedly, you might see a popup saying 'Something went wrong' o...