Hi LeeChavez
My name is Roger W. Im an independent advisor
Step 1: Go to the Start menu and click on the configuration application to run it.
Step 2: Here you will find the System menu with options such as Display, Notifications and Power. Click here
Step 3: In the left panel, you will find a default application option. Click on this tab and scroll down to where you'll find the music player section.
Step 4: If you have not already changed it, Groove Music would be the default music player. Now you only need to change the default application from Groove Music to Windows Media Player. You can do it by clicking on the Groove Music icon to choose an application to replace it with, and here you choose the Windows Media Player icon to make it the default music player.
Best Regards