Originally posted by: John
Originally posted by: sonoma1993
for the most part, oem doesn't come with support from microsoft, a manual, and the fancy package
Correct, but perhaps the most important difference between OEM and Retail is the transfer clause in the EULA.
[*]OEM is tied to the original computer that it's installed on. If you replace the motherboard for upgrade purposes you have a new computer and need a new license to stay "legal". If you install it on another computer that is also against the EULA and you're committing casual piracy.
[*]Retail full version can be transferred to a new computer an unlimited number of times as long as it's only on one computer at a time.