White Shield on Blue background is the latest WD version in W10 v1703 Creator's Update (CU), so most likely Microsoft deployed in in earlier versions of Windows (W7/W8x) through their monthly updates. I don't currently have a 8.1 system running here at the moment, but one of the other guys here might have one they can check. Chances are that the reason you have the new icon for WD in some places of your 8.1 and not others, is that you don't have all the updates installed into your 8.1 system. We had a discussion earlier today about what you need to do to fully update your 8.1 on another thread. You should try to update your 8.1 following the instructions here:
windows update problem in windows 8.1
Then see if all your WD icons...