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

Windows Security DNS Error Troubleshooting Checklist

If you see a DNS error in Windows Security—like 'DNS resolution failed' or 'We can't connect to t...

Fix Windows Terminal High CPU Usage & Permission Denied Errors

You open Windows Terminal and notice the fan spinning up, Task Manager shows 30–50% CPU from Wind...

Fix Windows Defender Service Path Not Working

When Windows Defender's service path isn't working, the Security Center may show “Unknown” status...

Fix OneDrive 404 Not Found & File Access Denied Errors

You try to open a file in OneDrive and see a 404 Not Found message, or you get an Access Denied e...

Fix VirtualBox Kernel Driver Permission Denied on Linux

Fix 'ffmpeg: command not found' on Linux

You try to run ffmpeg in the terminal and get ffmpeg: command not found...