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

Cloudflare Origin Certificate Not Showing in Dashboard: Fix

If you've generated a Cloudflare origin certificate but it doesn't appear in your dashboa...

Fix Cloudflare Wildcard Subdomain DNS Propagation Delay

You set up a wildcard DNS record (e.g., *.example.com) in Cloudflare, but new subdom...

How to Restore Missing Windows Taskbar Icons

You open Windows and notice some taskbar icons are gone—maybe the volume, network, or battery ico...

Fix Windows Explorer Restarting After Update

After a Windows update, you may see Explorer repeatedly restarting—the taskbar flickers, desktop ...

Fix pnpm ERR! Cannot Find Module – Practical Steps

Fixing Nginx 502 Bad Gateway in Docker: Practical Steps

You set up Nginx as a reverse proxy in Docker, but instead of your app you see a 502 Bad Gateway....