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

Fix Cloudflare Origin Certificate with Let's Encrypt

If your origin server is rejecting the Cloudflare origin certificate—perhaps because of a SAN mis...

Windows Security App Not Opening as Administrator: Fixes

When you try to open the Windows Security app and it fails to launch, often with no error message...

Fix Chrome Access Violation Error When Printing

You click Print in Chrome and instead of a preview you get an error: "Access violation at add...

Setup Cloudflare Origin Certificate for Nginx

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

How to Set Python Path in Windows 10