On October 26, 2012, Microsoft will start offering Windows 8 Pro upgrades to all PC users. Those who bought between June 2, 2012 to January 31, 2013 are eligible for a promo price of only $14.95.
All you need to do is pre-register and complete the form to be eligible.
This is only applicable to digital download versions of Windows 8 Pro. There’s a separate pricing scheme to the DVD version.
Head on here to register your PC for the promo upgrade price of only $14.95.