Hi,
If you want to Add Features you have to BUY another Product Key to upgrade to PRO, Media Center.
"Get more from Windows 8.1'
http://windows.microsoft.com/en-us/windows-8/feature-packs
Add features to Windows 8.1 *
If your PC is running Windows 8.1, you can get Windows 8.1 Pro Pack and enjoy all the features of Windows 8.1 Pro as well as Windows Media Center for $99.99 USD ERP. To buy Windows 8.1 Pro Pack, follow the instructions on this page.
"Add features: FAQ"
http://windows.microsoft.com/en-us/windows-8/add-features-frequently-asked-questions
Cheers.
Many thanks for the response. I would also like to know why the product key on the disk, 'manufacturer's factory installed product key" is wrong when I enter it in the product key section. What is the difference between this key and the "correct key" which the computer is asking for?
TDS_386