31/1: Today is the last day to upgrade before the price goes up to $200
For a limited time, upgrade to Windows 8 Pro for a special price: $39.99
This deal enables you to upgrade your Windows 7, Vista or XP PC to Windows 8.
This is a direct download from Microsoft. It is less than the retail upgrade version which comes with the box and CD and sells for $68.
If you do not like the Metro interface you can restore the classic Windows 7 Style Start Menu with Start8.
http://www.stardock.com/products/start8/
Deal starts on 26th Friday!
EDIT: By using Jesseboy89's workaround from the comments below you can get it for $15!
'Go to https://www.windowsupgradeoffer.com/en-AU/Registration - enter in details, make some up (i.e. purchase date 1st July 2012) and a model number of a laptop or something. It will then email you a promo code, run the upgrade tool, go through to buy it, select paypal or credit, then enter the promo code it emailed. Bobs your uncle, you'll find it reduced to $14.99. Pay and it gives you an upgrade product key immediately, saving $25 :'
Upgrade Tool Download: http://go.microsoft.com/fwlink/?LinkID=262205
i installed a ThinPC (win 7) on my mbp. i will try.