System features Operating system Windows Embedded 8.1 Industry Pro Retail 64-bit Windows 8.1 Pro 64-bit Windows Embedded POSReady 7 32-bit Windows Embedded POSReady 7 64-bit Windows 7 Professional 32 (available through downgrade rights from Windows 8.1 Pro) Windows 7 Professional 64 (available through downgrade rights from Windows 8.1 Pro) FreeDOS 2.0