Want to disable the features in Windows Media Player to other users? Just lock the media player skin by following the steps given below,
1. Press Windows Logo button + R
2. Type "gpedit.msc" and press enter
3. Navigate to User Configuration > Administrative Templates > Windows Components > Windows Media Player > User Interface and double click on the fourth option "Set and lock skin" and click on enabled.
4. This will disable the users from accessing the full features in Windows Media Player.