Some programs and features that are included with Windows are turned on by default, including Windows Media Player. You can turn off Windows Media Player if you don’t use it.
Turning off Windows Media Player removes it from Windows, but doesn't reduce the amount of hard disk space used by Windows. It will remain stored on your hard disk, so you can turn Windows Media Player back on if you want to.
You'll need to install another program to perform any of the following tasks.
Play video or music in Windows or Windows Media Center.
Listen to audio CDs or watch DVD movies in Windows or Windows Media Center.
Record and watch TV in Windows Media Center.
Rip music from an audio CD.
Stream media to other devices and computers.
Some programs and websites that play audio or video might not work correctly without Windows Media Player turned on.
If you turn off Windows Media Player, you might change which program is set as the default program for playing audio, music and video files. For more information, see Change which programs Windows uses by default.
You’ll still be able to manage your audio, video, and music files using folders and libraries even if you turn off Windows Media Player. For more information, see Working with libraries and Folders: frequently asked questions.
For more information about Windows Media Player, see Getting started with Windows Media Player.