Have you ever thought why OEM(Original Equipment Manufacturer) versions of both Software and Hardware is very cheap? or what’s the difference between OEM and retail version?
For example, retail version of a DVD RW comes with all the required cables,screws, Nero burning rom or Roxio DVD Creator or any other disk burning software, warranty information, manual etc in a good package. But OEM version comes in a plastic cover with 4 screws.
OEM versions do not come without fancy boxes, packaging, manuals or even technical support. What the OEM product will come with will vary depending upon the type of product being sold. They might be missing cables or software that may have been included with the retail version. OEM versions are meant for computer manufacturers, who are expected to provide all support for the customer and required accessories.
The same is with software. If you buy an OEM version, you will not get any support or any other supporting software from the product manufacture.

October 14th, 2009 at 5:23 pm
[...] you can pre-order Windows 7 Ultimate for just $174.99. This is the OEM version of Windows 7 ( Click here to know the difference between OEM Version and Retail versions).Following is the complete pre-order list. Click on the price to go to the http://www.newegg.com shop to [...]