So you bought a new Windows 7 PC on or after June 2, 2012 and you're anxious to upgrade to Windows 8 Pro already, is that right? Well, you might be in the minority on the latter part (see User Experience Expert Pans Windows 8), but if that's your end game, registration is now open for Microsoft's $14.99 upgrade offer to Windows 8 Pro. You can't actually download your copy of Windows 8 Pro until it launches to the general public on October 26, 2012, but you can fill out the form and validate your eligibility.
In case you need a refresher on what we're talking about, Microsoft's Windows Upgrade Offer allows you to upgrade to Windows 8 Pro for $14.99 if you purchase or have purchased an eligible Windows 7 PC between June 2, 2012 and January 31, 2013. It's a low cost way to ensure that if you buy a PC today you can still rock the latest version of Windows once October 26 rolls around.
To register (or pre-register, as it were), you'll need to fill out a few personal details and provide information about your Windows 7 PC, including the 25-digit Windows 7 product key that came with it. After that, you sit back and wait for Microsoft to shoot you a promo code via email so you can redeem your upgrade at the discounted price.
On a related note, if you're a student, don't forget you can snag a free Xbox 360 console with the purchase of a new Windows PC for $699 or more from participating retailers.