Rhino 6.0 offline installation

Hi everyone,
I am trying to install rhino on my windows 10 which happen to do not have an internet connection.
I have been trying to install it but I ve only managed to collect a series of failures.

I did download the offline package as suggested in Rhino official website, and I placed everything in the same directory, redist folder included. Once I 've done that nothing would happen the exe file would run the same interface as before, the bootstrapper file as well. I tried a quiet installation, hoping it could help me, but it didn’t.
I also downloaded the helper file from the rhino website, but it turned out to be a pointless move, as the OS would not recognise it.

Anyone has any idea?