Everything you need to know about Windows 8.1 versions. http://zd.net/GABFep No upgrade versions will be available at a discounted rate. Microsoft will only sell full versions that let you upgrade or install new. While this makes it easier to keep track of the products, it will end up costing some users more money. Remember, if you need to connect to a domain, use GPO’s, or use server resources, you need to buy the Pro version. If you have any questions about Windows 8.1, ask your Technology Consultant!