Client activation using Windows and Office MAK key

 Client activation using Windows and Office MAK key

Hi,
we have 25 clients and bought 25 licenses for Win7 and Office 2010.
we were given a mak key and it activates the image in private mode.
but when the mode has been changed into volatile the other clients are complaining about activation. admin account activates them also but with the first restart the activation pops up again since the cache has been deleted.

how can i solve this problem? i dont want to use the clients in persistent mode which would be a partial solution. please help.

thanks