Can I use the operating systems in my Expression Subscription to install or upgrade my design and development PCs?
Expression-licensed operating systems (OS) can be used as the primary OS as long as the computer is used only for design, development and testing purposes, and as long as every individual using that computer for development or testing purposes has a separate Expression Subscription license: an Expression Subscription is licensed on a per user model, unlike normal OS licensing which is based on a per device model.
