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

GitHub Actions Workflow Not Triggering: Fixes & Checks

You've set up a GitHub Actions workflow, pushed a commit, and nothing happens. The workflow doesn...

Fix Windows Update Error 0x80072efd: Connection Refused

When Windows Update fails with error 0x80072efd and a message that the connection was refused, it...

Windows Update Proxy Error Checklist for IT Admins

Windows Update failing with a proxy error is a common headache in enterprise environments. The er...

How to Fix Windows Update Error 0x8024402c

If you see error 0x8024402c when checking for updates, Windows Update is having trouble connectin...

SSH Permission Denied (Publickey) on EC2: Setup Fixes

If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...

Fix Windows Defender Proxy Error: Permission Denied