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

Windows 11 Installation Assistant Stuck at 99%: Fixes That Work

You’re upgrading to Windows 11 via the Installation Assistant, and it gets stuck at 99%. The prog...

Fix Cloudflare 521 Error: SSL Configuration Steps

If you see a Cloudflare 521 error, it means Cloudflare can't establish a TCP connection to yo...

Fix Nginx Permission Denied on Socket File

When Nginx throws a "permission denied" error for a socket file, the web server can't...

Fix Git Push Rejected Non Fast Forward Error

How to Flush DNS on Windows 11 to Fix Internet Issues

If your internet seems slow, websites won't load, or you see DNS-related errors, a corrupted ...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

When you run git clone or git pull and see an error like "S...