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

Fix VirtualBox Kernel Driver Not Installed on Windows 10

How to Fix a systemd Service Restart Loop

You start a systemd service and it immediately restarts, or it runs for a few seconds and then re...

How to Fix Windows Defender Service Not Running

If you see a message that Windows Defender is not running or the security center shows it's off, ...

Fix PostgreSQL Connection Refused from Docker Container

You have a Docker container that needs to connect to a PostgreSQL database. The container starts,...

Fix 'File Locked by Windows Security Cannot Delete'

You try to delete a file, and Windows tells you it's locked by Windows Security. This often happe...