Windows 8 - BN3D2-R7TKB-3YPBD-8DRP2-27GG4
Windows 8 N  - 8N2M2-HWPGY-7PGT9-HGDD8-GVGGY
Windows 8 RT(ARM) - DXHJF-N9KQX-MFPVR-GHGQK-Y7RKV