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

Windows Defender Real-Time Protection Registry Fix Guide

If Windows Defender real-time protection won't turn on or keeps turning off, a registry fix c...

Setup Cloudflare Origin Certificate for Nginx

If you use Cloudflare as a reverse proxy, enabling HTTPS between Cloudflare and your Nginx server...

Fix Git Push Rejected Non Fast Forward Error

Fix Chrome Black Screen on Intel Graphics with Hardware Acceleration

If Chrome shows a black screen on an Intel graphics system, especially after an update, hardware ...

Git Detached HEAD Warning Explained: Causes and Fixes

You see a warning: "You are in 'detached HEAD' state." This happens when you chec...

Fix Windows Update Error 0x80070002 by Resetting SoftwareDistribution Folder

Windows Update error 0x80070002 often appears when the system cannot find or access the update fi...