Hello Yoann, the uninstallation from Network Agent with msiexec command is a bit tricky. First of all you have to use a Ascii to HEX Converter for you password. When you have your pwd in Hex Format you have to fill in every two Symbols 00 So if your Password is "Animal" it is in HEX 41 6E 69 6D 61 6C so your Password is 41006E0069006D0061006C00 If you now would like to uninstall NA with msiexec command you should run: msiexec /x{Product Code} /qn /l*vx c:\windows\temp\na