Hi, I have written a setup(using the latest AdvancecInstaller), in which I use the following command for the silent uninstall msiexec.exe /qn /uninstall {2631383F-852E-4BEA-8126-FF838E8D769F} /l*v installqn.log which works fine in most of the operating systems. However, in Windows 8.1, it does not s...