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

Fix Windows Defender Update Error 0x80070005

You see error 0x80070005 when trying to update Windows Defender. This usually means a permission ...

Fix GitHub Actions Permission Denied for Secret Access

When a GitHub Actions workflow fails with a "permission denied" error while trying to access a se...

Windows Activation Error Troubleshooting Checklist: Step-by-Step

Common Activation Error Types

Windows activation errors usually appear as a watermark on ...

GitHub Actions Workflow Not Triggering: Fixes & Checks

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

BitLocker Backup and Restore Checklist for IT Admins

When BitLocker recovery keys are lost, data can become permanently inaccessible. This checklist h...

How to Fix Remote Desktop Connection Refused on Ubuntu

You try to connect to your Ubuntu machine via Remote Desktop (RDP) and get a "connection refused"...