Josef

Thank you for your comments and advices. Should I now uninstall the Valentine free trial SW ? Will I be able to use it again after getting new Windows operating system ?

MESSAGE FROM INTERNET IS : Product .NET Framework 4.7.2 is not supported in this operation system. My systems are: Note book: 64 bit Windows 7 Home Premium Desktop: 32 bit Windows Vista Home Basic Any morer advices ? Thank you, Joe

I am not able to start your free trial programs (PV*SOL® premium and/or PV*SOL), because - as I found - my .NET Framework is 4.6 version only. Any advice? Thank you, Josef