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 Windows 11 Blue Screen After Update Using Compatibility Mode

You installed a Windows 11 update, rebooted, and hit a blue screen. This often happens when a dri...

Fix Chrome Hardware Acceleration Black Screen on Laptop

If your laptop screen goes black when using Chrome, especially during video playback or scrolling...

Fix Windows Update Error 0x800f081f Installation Failed

When you see Windows Update error 0x800f081f with “installation failed,” it usua...

Fix Docker Volume Permission Denied for Postgres

Fix Missing Taskbar Icons on a Second Monitor

If you've connected a second monitor and the taskbar icons aren't showing up on it, you&#...