Hi @RockmanIT,
Did you mean you want to activate Microsoft 365 in the shared computer?
I suggest you read this article:
As the article said: If your environment is configured to synchronize Office 365 (Azure Active Directory) and local Active Directory (AD) accounts, then the user most likely won't see any prompts. Microsoft 365 Apps should automatically be able to get the necessary information about the user's account in Office 365.
Hope the information is helpful.
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