From the site: To prevent Media Player from entering more data in the list: 1. Click Start --> Run and type regedit 2. Navigate to this Directory : HKEY_CURRENT_USER/Software/Microsoft/MediaPlayer/Preferences 3. In the right window double click on the key called "AddToMRU" 4. Double click that key and set the value to 00 (two zeros). I HAVE NO "AddToMRU" on my computer! I did get rid of: To remove the media Player history: 1. Click Start --> Run and type regedit 2. Navigate to this Directory called "RecentFileList" and click on it: HKEY_CURRENT_USER/Software/Microsoft/MediaPlayer/Player/RecentFileList 3. Right click on each key in the right window, and choose delete. i.e File 0, File 1 etc 4. Also check the folder below it called "RecentURLList" and do the same What gives?