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

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...

Fix Windows Defender Authentication Failed After Update

After a recent Windows update, you might see an error like "Authentication failed" when trying to...

Fix NVM Not Found in Git Bash on Windows

How to Fix Windows Activation Error 0x803fa067

You might see error 0x803fa067 when trying to activate Windows. This often means Windows can't re...

Fix Task Scheduler Error 0x80070005 Access Denied

You scheduled a task, but it fails with error 0x80070005 and the message 'Access Denied'. This us...

Fix Windows Defender Rate Limit Error Not Working

If you see a 'rate limit error' in Windows Defender and it's not working properly—scanning fails,...