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

Fix Windows Activation slui.exe Not Opening

When you try to activate Windows using the Settings app or a command, slui.exe (Software Licensin...

Fix SQL Server Connection Refused Error in CMD

When you try to connect to SQL Server from the command line (using sqlcmd or another...

How to Fix '404 Not Found' File Path Errors in CMD

Fix Microsoft Store Connection Refused by Firewall

If you see "connection refused" when opening Microsoft Store, your firewall or network settings a...

How to Add NVM to PATH on Windows 11

After installing NVM for Windows, you might see 'nvm' is not recognized as an internal or e...