Hello Chris,
Thank you for contacting Microsoft Community.
Windows Media Player content that you download from the Internet or record with the CD Audio feature, that has Digital Rights Management enabled (which is enabled by default), has associated license files that you must back up periodically to ensure that
content plays back in the event of a system restoration. If you're having trouble playing a song or video, it might be because the file is protected with digital rights management (DRM). DRM is a technology that content providers sometimes use to make sure
that the digital music and video files you get from them are used and distributed according to their media usage rights.
If you see an error message that indicates you're missing play, burn, or sync rights for a file, and you had these rights previously, you might be able to resolve the problem by restoring your media usage rights. You have several options to
do so:
- If you obtained the file from an online store, the store might offer media usage rights (license) restoration. (Some stores refer to this procedure as computer activation, computer authorization, library restoration, or license synchronization.)
- The procedure for restoring your rights varies from store to store. For some stores, you might need to click
Browse all Online Stores in the lower-left corner of the Player, click the store in the list, install the store software, and then click a customer service or account management link on that store's page.
- The store might limit the number of times that you can restore your rights or limit the number of computers on which you can use the songs or videos that you obtain from them. Some stores don't permit you to restore media usage rights at all. For details
about the store's policies, see the store's customer support or Help information.
- For more information about accessing online stores, see
Shop online in Windows Media Player.
- If the file is a song you ripped from a CD with the Copy protect music option turned on, you might be able to restore your usage rights by playing the file. You will be prompted to connect to a Microsoft webpage that explains how
to restore your rights a limited number of times.
Refer the article
Windows Media Player DRM: frequently asked questions. Since the article is designed for Windows 7, then same content applies for Windows 10.
Keep us posted if you require further assistance.
