Software comparisons, alternatives, and tool decision notes.

Fix Windows Defender Real-Time Protection After Clean Boot

You've performed a clean boot to troubleshoot an issue, but now Windows Defender's real-t...

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...

Docker Compose Environment Variable Not Working: Fixes

You define a variable in a .env file or directly in docker-compose.yml, but your container sees n...

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...

Fix ERR_CONNECTION_RESET in Chrome on Mac

If you see ERR_CONNECTION_RESET in Chrome on your Mac, the browser cannot establ...

Fix Windows Defender Error 0x800704ec: Real-Time Protection

If you see error code 0x800704ec when turning on Windows Defender real-time protection, the servi...