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...

Windows 11 Bluetooth Not Finding Devices: Practical Fixes

If your Windows 11 PC suddenly stops detecting Bluetooth devices—like headphones, keyboards, or m...

How to Fix Windows Update Error 0x80070002

Error 0x80070002 often appears when Windows Update tries to install an update but can't find ...

How to Fix Chrome Using 100% Memory on Windows and Mac

You open Chrome, and your computer slows to a crawl. Task Manager shows Chrome using 100% memory....

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

Fix Cloudflare 521 Error Due to Server Overload

You see a Cloudflare 521 error page. The message says the web server is down. Often, this means y...