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

How to Fix systemd Service Restarting Repeatedly Error

Fix Windows Security High CPU Usage on Windows 11

If you notice your Windows 11 system running slowly or hear the fan constantly spinning, Windows ...

How to Fix Windows Security Proxy Error

You may see a Windows Security proxy error when trying to access the internet after a network cha...

Fix Windows Update Connection Refused on Windows 11

If you see a 'connection refused' error when checking for updates on Windows 11, it usually means...

How to Fix Cloudflare Error 521: Web Server Is Down

If you're seeing Cloudflare error 521, it means Cloudflare can't establish a TCP connection to yo...

Fix Windows Security Not Starting After Update

After a Windows update, you might find that Windows Security won't open, or it shows a blank wind...