Hi, guys.
Today Gearbest refunded my order because they told me that they only have 32 bits version.
After writing them like a hundred tickets they just keep avoiding to answer my question about the version of windows 10.
I thought it was language problems because I don´t have a good English, but after a few mails it was clear that they didn´t want to answer clearly to this matter. They told me that the Z8300 was 64 bits but never about windows 10 so I send them a photo of one of you that shows this problem and I marked on red this, just in case they didn´t want to see it.
And next thing was the refund and their message telling me that they have the 32 bits version.
So thanks to all of you and your advice.