Turn off the Windows Startup sound and prevent its customization in the Sound item of Control Panel. The Microsoft Windows Startup sound is heard during system startup and cold startup and can be turned on or off in the Sound item of Control Panel. Enabling or disabling this setting will automatically prevent users from customizing the default behavior of the Windows Startup sound. If this policy setting is enabled, the Windows Startup sound will be turned off for all users. If this policy setting is disabled, the Windows Startup sound will be turned on for all users. If this policy setting is not configured, the Windows Startup sound will be turned on for all users by default and customizable in the Sound item of Control Panel. This policy setting does not prevent users from setting preferences for other system sounds. Fix: (1) GPO: Computer Configuration\Administrative Templates\System\Logon!Turn off Windows Startup Sound (2) REG: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System!DisableStartupSound