You guys don't understand Windows licensing.It's OK, neither did I, until I spent an internship at a qualified MS partner selling the OS.
Even though it has been simplified, Windows licensing is still a complex affair, so it's no wonder people don't know about all the options:
1. Corrected. Windows 8 can be bought as OEM or Upgrade. There is no Full Boxed Product (FBP) for End Users.
1. For end users, Windows 8 can only be bought as OEM. This means, either you buy the OEM kit or it's pre-installed on your machine by your supplier. End users can only buy Windows 8 and Windows 8 Pro (there's no Ultimate or Basic version this time around).
//No, as an End user, you can't buy a Windows 8 upgrade. This is because MS is trying to cut down on all the head-ache the various licenses were causing and because Personal Use Licenses were introduced. Corporate partners with Software Assurance can upgrade their OS as part of the program, but that's a whole different beast.2. Using the OEM kit, you can install the OS with either an OEM or a PUL license.
3. OEM:a) An OS installed using the OEM license is "bonded" to the machine it was installed to and can't be legally moved to a different computer or sold separately from the machine. The person who did the installing is considered the tech-support supplier and will have to provide tech-support for the machine themselves. MS only provides tech-support related to the OS itself. MS considers the machine the same as long as you're using the same motherboard, with the exception of warranty replacement if the part goes bad.
b) The OEM license can also be used to "downgrade" that is, install a previous version of Windows using the license at hand. With Windows 8 Pro OEM, you're entitled to install and use Windows 7 Pro or Windows Vista Business. - so no, you could just buy a Windows 8 Pro OEM kit, and downgrade, no need to buy the expensive Windows 7 upgrade.
4. PUL:a) When using the PUL license, the end user uses an OEM kit, but doesn't use the serial provided in the kit. Instead they must register their copy with Microsoft on the following webpage:
http://www.windows.com/personaluselicenseb) Unlike the OEM license, a version of Windows 8 using the PUL license *can* be moved to a new machine and *can* be sold separately.
c) Microsoft only provides limited support for PUL.
d) You're
NOT permitted to downgrade when using a PUL license.
5. Upgrade:This one is the cause of all the headache. An Upgrade doesn't given you any sort of base license!
a) To upgrade, you need an upgrade base. For Windows 8 this has to be at least Windows XP and costs $40. If you have Windows 7 you might be eligible for a lower price of $14.99. (This depends on what deal your PCs manufacturer made with MS).
b) The license restrictions of the upgrade base will still apply to the machine:
Upgrade + OEM upgrade base --> machine still uses OEM license, upgrade base can't be moved
Upgrade + FBP upgrade base --> machine has FBP license, the upgrade base can be moved
c) So if you apply the upgrade to an OEM machine, the Upgrade will also be stuck?
No, you're still permitted to remove the Upgrade and restore the machine to its Upgrade Base OS (the OS that it was running before you applied the Upgrade). The Upgrade then can be applied to a different machine, provided it has a sufficient upgrade base.
d) Do you have the right to "Downgrade" from Windows 8 when using an Upgrade license?
NO. If you applied the Windows 8 Pro Upgrade to a machine running Windows XP, you're not permitted to Downgrade to Windows 7 Pro or Vista Business.
4. Previous Windows versions could be bought in three forms:
a) OEM - Read about it above
b) FBP (full boxed product) - This version of the OS could be freely moved from machine to machine, sold separately, and received full support. It also cost 2x much as an OEM kit.
c) Upgrade - Read about it above