Windows 7 OEM 64 bit for PC Build?

[Tongeyy]

On amazon, I saw windows 7 for £60 but it says 'OEM version'. What does this mean and should I buy it? Im currently doing a PC Build

 

[CDdude55]

OEM versions have certain limitations as they are meant for OEM retail systems (Dell, HP, Acer etc).

With OEM copies you are unable to upgrade your motherboard to a different make/model (granted you can usually bypass this limitaiton by calling Microsoft)

OEM copies lack Microsoft customer support as well.

Here a link: http://answers.microsoft.com/en-us/windows/forum/windows_7-windows_install/how-exactly-does-windows-7-retail-vs-oem/fae7b2ab-c530-45e6-aeb3-cc55cf7b9231

 

[kenrivers]

Cdude55 is absolutely correct. You would be better off buying a retail version. It's a bit more expensive but well worth it if you do any future upgrades, especially the motherboard as was mentioned by Cdude55.