If you are using steup.exe then you can use setup.exe /r(When product is already installed)to create iss file and then you can use setup.exe /s command which will uninstall it. http://kb.flexerasoftware.com/selfservice/microsites/search.do?cmd=displa...
Hello,I also get into same issue...This will happen when we use same license on different machine or by mistake the license in not recognizable. Return license on machine and again activate it again it will work fine.