I found this on hardforum. It works i did it last night and is a legit copy.for 15$ i couldn't pass it up.
here is the link http://hardforum.com/showthread.php?t=1724643
Got a notice of this deal through SD. Follow these steps:
Step 1: Go here.
Step 2: Fill out the form, it'll take anything, just as long as you put the date of "PC purchase" after June 2012. It won't check for validity It will give you a Registration ID.
Step 3: Paste that Registration ID number into this form. It will give you a promo code. Copy that promo code, and download the Windows Update Assistant from that page.
Step 4: Run Windows Update Assistant. It will show the cost to be $39.99. Click order. After you put in all your information and payment info, it will land on a confirmation page. This is where you paste that promo code to get $25 off, hence buying it for $14.99 total.
Step 5: After you place the order, it will give you a product key and take you to the download page.
Step 6: It will download, then ask how you want to install it. Click the install later with media, and choose the ISO image. You can then burn the ISO onto a DVD and there you go!
Just purchased a copy myself. I believe the limit is 5 per IP.
Enjoy
