Prevents users from changing the sound scheme. By default, users can use the Sounds tab in the Sound Control Panel to add, remove, or change the system Sound Scheme. If you enable this setting, none of the Sound Scheme settings can be changed by the user. Fix: (1) GPO: User Configuration\Administrative Templates\Control Panel\Personalization!Prevent changing sounds (2) REG: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Personalization!NoChangingSoundScheme