SuperCookies: How to prevent websites from tracking your online activity.
Windows Media Player has a unique ID number that may be used by websites to track the users behavior. Microsoft has added this SuperCookie to Internet Explorer 6 and it may also work in all previous versions of Internet Explorer using older versions of Windows.
To remove the SuperCookie, select the "Tools / Options..." menu command from Windows Media Player and uncheck the box that says "Allow Internet sites to uniquely identify your player".
If you have Media Player 6.4 and 7 and the above option does not work for you, then follow this link:HERE.