Microsoft

MS Windows 8.1 4HR-00198 SL 64BIT TR (OEM)

MS Windows 8.1 4HR-00209 SL 32BIT TR (OEM)

MS Windows 8.1 4YR-00157 Pro GGK 64 TR(OEM)

MS Windows 8.1 FQC-06949U Pro 64BIT ENG (OEM)

MS Windows 8.1 FQC-06995 Pro 64BIT TR (OEM)

MS Windows 8 4YR-00071 Pro GGK 64 TR(OEM)