You must be signed in to your Visual Studio subscription to view your product keys. Individual product keys are found by selecting the blue Get Key link for a particular product on the Downloads page as shown below. When multiple keys exist for a single product, notes will be displayed on the Notes column for the download to assist you in identifying which key should be used.
Some products bundle multiple editions of the product into a single download. In these cases, the product key entered determines which edition of the product is installed. Some keys are provided automatically, such as “static” keys, which you can use as many times as needed because activation is not required. Other keys must be claimed by selecting the Get Key link for the product.
All keys are also available in aggregate on the Product Keys page. On this page you can find static keys that work for all users of a product, get custom keys just for your use, see the status of your key claim limits, and export all of your product keys.