New
#71
Just checked with Microsoft and the Surface Pro 2 actually has Windows 8.1 Pro. Never used them so don't remember which Windows 8.x Pro it came with.
Microsoft Surface Pro 2 specifications | Surface Pro 2 specs
After I said that, it reminds me that I have a ASUS G73S that I completely disassembled 4 years ago meaning took every screw and component out that came with Windows 7 Home Premium before I even turned the machine on. Was planning to run FreeBSD/Linux on it. In any case, looks like that machine, I will either have to put it back together and put the original HD back in to update to Windows 10 before July 29, 2016 unless there is another way to register the key with Microsoft.
Good thing someone put up this guide:
Asus G73 Series Disassembly Guide | NotebookReview