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

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 Git Clone Connection Timed Out Due to Firewall

You run git clone and after a long pause see connection timed out. This...

Docker Container Exits Immediately: Diagnosing Out of Memory

You start a Docker container and it exits within seconds. The logs show nothing obvious, or they ...

Fix Nginx Upstream Connection Refused in Proxy Pass