Windows 8.1 Professional GCRJD-8NW9H-F2CDX-CCM8D-9D6T9 Windows 8.1 Professional N HMCNV-VVBFX-7HMBH-CTY9B-B4FXY Windows 8.1 Enterprise MHF9N-XY6XB-WVXMC-BTDCT-MKKG7 Windows 8.1...