Hi, @Peter Dennington
Thank you for posting in Microsoft Q&A forum.
It seems we cannot get the original installation file on the internet, here are some methods that uninstall ADK, we may try it to see if anyone helpful:
http://www.uninstallhelps.com/how-to-uninstall-assessment-and-deployment-kit-by-microsoft1.html
(Please note: Information posted in the given link is hosted by a third party. Microsoft does not guarantee the accuracy and effectiveness of information.)
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