then found this on the help:
Locked files can easily be deleted if you press Shift-Option or Option key combination while emptying the Trash (in Mac OS X 10.1 and later).
This thread has been closed by the system or the community team.
You may vote for any posts you find helpful, or search the Community for additional answers.
How do I uninstall windows media player?
Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.