I have started the intallation of the last version 4.2.5. I have downloaded the installer, but when I click it to run it a message from windows 8 appears “This installation package can not be opened. Contact the application vendor to verify that this is a valid windows installer package”.
In the previous installation of the version 4.2.4 there was not any problem!
Do you have any idea in order to overcome the windows barrier?