Visual Studio subscriptions provide access to a wide range of Microsoft products for designing, developing, testing, and demonstrating applications. Some of these products require product keys during installation, and some of those require activation.
Visual Studio subscriptions typically include five product keys for current versions of Windows and Office products, and three keys for older versions.
Most product keys also allow multiple activations of the product for each key. Many products also allow you to install and use the product for 30 days or more without activation. For most subscribers, this provides more than enough activations to meet their needs. However, if you have exhausted the available activations for a product, you can submit a request for additional keys through Visual Studio Subscriptions Customer Service.