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

Windows 11 Installation Assistant Stuck at 99%: How to Reset and Finish

You're upgrading to Windows 11 using the Installation Assistant, and it gets stuck at 99% for...

Checklist for Nginx Configuration Test Failure

When you run nginx -t and get a failure, the server won't reload or restart. Thi...

Fix Docker Volume Permission Denied on Mac

Fix Windows Update Error 0x80070005 by Repairing Registry Permissions

If you see error 0x80070005 when running Windows Update, the problem is often a permissions issue...

Fix Cloudflare Wildcard Subdomain DNS Propagation Delay

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

Fix Chrome Certificate Error: Invalid Authority Registry on Windows

When browsing in Chrome, you may encounter a certificate error stating “invalid authority...