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

Fix Windows Defender Update Error 0x80070490 on Windows 11

If you see error 0x80070490 when trying to update Windows Defender on Windows 11, it usually mean...

How to Stop a Docker Container from Restarting

You start a Docker container, it runs for a few seconds, then stops and restarts. Or you stop it ...

Fix Windows Defender Real-Time Protection Access Denied

You try to turn on Windows Defender real-time protection but get an 'access denied' message. This...

How to Fix Command Prompt Can't Connect to Network

You open Command Prompt and try to ping a website or use a network tool, but you get an error lik...

Fix 'ffmpeg command not found' in PHP exec()