Prevent changing sounds

Supported on: At least Windows Server 2008 R2 or Windows 7

Registry

HKCU Software\Policies\Microsoft\Windows\Personalization

Value name: NoChangingSoundScheme

Description

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.