Hi Alex,
You may disable and then enable Windows media Player from the Windows Features and see if the issue persists.
Follow these steps to do so:
a. Press Windows key + X and select Control Panel.
b. Select Programs and Features.
c. Click Turn Windows features on or off. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
d. Click on Media Features.
e. To turn Windows Media Player off, clear the check box. Click OK and then restart the computer.
To Turn Windows Media Player ON, click on the checkbox once again and click OK. And then restart the computer.
Thanks.