Permanently Remove Dropbox Promotion on Windows 10

Anyone have any ideas on how to permanently remove the Dropbox 20 GB promotion that comes with new Dell Laptops?  I've used the "Add or Remove Programs" feature in the settings of Windows 10 at least 4 times but the program keeps coming back. I have a suspicion that when the Dell Update program runs it downloads the promotion again so it pops up after a reboot. I'd like to keep the Dell Update program for now so any other ideas on how to get rid of the promotion would be appreciated.

Inspiron 5566 Running Windows 10 Pro

Thank you