Workflow manuals for setup steps, repeatable tasks, and software operations.

How to Fix Nginx Upstream Connection Refused on Port 80

When nginx logs show "upstream connection refused" while connecting to port 80, it means ...

Fix Blue Screen Loop After Windows 11 Update

You install a Windows 11 update, restart, and then get stuck in a blue screen loop—the system cra...

Fix Nginx Redirect Loop in WordPress

You visit your WordPress site and get a "redirect loop" or "too many redirects" e...

Fix Windows Defender Blocked by Third-Party Antivirus

You open Windows Security and see a yellow warning: "Real-time protection is off. Your device...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

You run git clone https://example.com/repo.git and get:

fatal: unable to acc...

Fix Git Stash Error: index.lock File Exists

You run git stash and see: fatal: Unable to create 'path/.git/index.lock&#...