Hi Rick_766,
I’m Efren. I’m an Independent Advisor and Microsoft user like you. I’ll be happy to help you out today.
In order to remove trusted devices from my Microsoft account, please follow the steps below:
Go to account.microsoft.com/devices, sign in, and find the device you want to remove.
Select Show details to see info for that device.
Under your device's name, select More actions > Remove.
Review your device details, select the check box, I'm ready to remove this device, then select Remove.
You can read more about this in the following article:
https://support.microsoft.com/en-us/windows/rem...
I hope that answers your question, but please let me know if you need anything else.
Sincerely,
Efren