If you purchased, or will purchase a Windows 7 PC between June 2, 2012 and January 31, 2013, then you are eligible to receive a Windows 8 upgrade for only $14.99.
You’ll need to provide your 25-digit Windows 7 product key as part of the online registration process. Then on October 26 (when Windows 8 is released) Microsoft will send out promo codes via email, which can then be applied upon checkout within the Windows 8 Upgrade Assistant.
There should be a large amount of students who picked up a Windows 7 PC during the back-to-school sales – this is definitely a deal you should take advantage of.
Upgrade offer expires on February 28, 2013. [WINDOWS UPGRADE OFFER]