FPP — Full version (Retail):
— Includes transfer rights to another computer.
— Doesn’t require a previous qualifying version of Windows.
— Expensive
DSP — OEM :
OEM versions of Windows are identical to Full License Retail versions except for the following:
— OEM versions do not offer any free Microsoft direct support from Microsoft support personnel
— OEM licenses are tied to the very first computer you install and activate it on
— OEM versions allow all hardware upgrades except for an upgrade to a different model motherboard
— OEM versions cannot be used to directly upgrade from an older Windows operating system
