I have a customer that upgraded to OEM 41 and advised that the sound is very low. His end user will be using these units in a theme park environment and the sound is going to be way too low. As per OEM 41 release notes Audio Registry changes to have general/default audio settings and to prevent overriding of speaker Customer wants to know if we can change or modify the sound volume to see the previous volume levels in past OEM versions. If so, what are the keys involved?