Dear @Ken Hadden,
Thank you for posting your question in the Microsoft Q&A forum.
We apologize for any inconvenience you may encounter when using our services/ products. Based on your description, kindly try these following steps:
Please sign in to your Microsoft account and visit Microsoft account | Sign In or Create Your Account Today – Microsoft to check whether there is an option to leave (unregister from) the Windows/Microsoft Insider Program.
If you do not see an option there, you have to reinstall Windows 11 and then unenroll Windows Insider Program by following the steps via Leave the Windows Insider Program | Unenroll your device and unregister your account..
I sincerely apologize for the inconvenience.
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