Wich version of Creo is the best for me?

Hello, my name is Erick Guzman, currently I am studying my MSc in England, I would like to have a student license in my computer, but I do not know which version is the best for me, also I do not know how to install the software it in my computer.

Could you please help me?

This is my email:

ezxeg@nottingham.ac.uk

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Thank and regards!