to purchase. It's likely that this version will be more prominent on new Windows 8 PCs. There's more though -- if you bought a Windows 7 machine since 2 June 2012, your upgrade price is 14.99 until 31 January 2013. If you're in this category, follow the instructions on the above link and you'll receive a promo code via email, which you can use during the installation process. And finally, Windows 8 Pro users can get the Media Centre add-on for free by submitting an email address here . This gives you a product key you can use to add the Media Centre once Windows 8 is installed. Again, the offer runs until 31 January, after which you'll need to pay to add Media Centre to the operating system. Note that the Windows 8 Media Centre is only compatible with the Pro version of Windows 8. Buying and downloading Once you've decided you've had enough of Windows 7, and applied for all of the discounts and free offers you can get your hands on, point your browser here to take the plunge and purchase Windows 8. Follow the Download Pro link and the Upgrade Assistant tool is downloaded to begin with -- this utility makes sure your system can run Windows 8 (which it should be able to), and checks for any compatibility issues with your installed hardware and software. At this early stage in the life of Windows 8 it's likely that not all your programs can be switched