There's no way to have 2 different looking account on the same log in. The idea of having separate log in accounts is to enable this kind of differentiation. You can have 2 different log in accounts with access to the same online resources, such as email. Maybe you could create 2 log in accounts eg user1 & user2) with the same password? They could then be configured to have access to the same online resources and email account?
Here's how to create accounts on windows 10:
I do hope this answers your question.
Thanks.
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