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

Setup Cloudflare Origin Certificate for Nginx

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

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

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 Windows Update Error 0x800f081f After Update

If you see error 0x800f081f after a Windows update, the installation likely failed because requir...

Bluetooth Hardware Not Found on Windows 11: Fixes

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

Fix Chrome Freezing on Startup on Mac

If Chrome freezes or becomes unresponsive immediately after you open it on your Mac, the problem ...