The offer is for customers (e.g. Home users, students, and enthusiasts) who purchase a qualified PC. A qualified PC is a new PC purchased during the promotional period with a valid Windows 7 OEM Certificate of Authenticity and product key for, and preinstalled with:
The promotional price is limited to one upgrade offer per PC purchased, and a maximum limit of five upgrade offers per customer.
You must purchase a qualified Windows 7 PC between June 2, 2012 and January 31, 2013 to be eligible for this offer. The last day to register and order your Windows 8 upgrade is February 28, 2013.
This offer requires internet connectivity for registering and ordering. Note: telephone or other access charges may apply.
Each upgrade license will apply to only one PC and may only be installed on PCs with a valid base license to a qualifying operating system (i.e., Windows XP SP3, Windows Vista or Windows 7).
While the offer will be limited to eligible customers who purchase a qualified PC, the upgrade may be installed on any compatible Windows-based PC with a qualifying operating system. Visit http://windows.com for information about Windows 8 minimum requirements. Customers should visit their PC manufacturer’s website for more information about how to upgrade their PC to Windows 8, including updated software and drivers.
The purchase of Windows 8 includes 90-days of no-charge support from Microsoft. The 90-day period begins when Windows 8 installation and activation is complete (Telephone or other access charges may apply).
For more information on this upgrade offer please visit windowsupgradeoffer.com