"The Everyone group often contains the same set of users as the Users and Authenticated Users groups. However, if you've enabled the Guest account, you'll find that users who have logged on as Guest are members of Everyone but not members of Users or Authenticated Users.
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Everyone group contains users/ authenticated users/ and guests. You cannot control who is in this group.
Authenticated Users is everyone who can successfully authenticated against the workgroup or
domain except for guests. That means every user you have configured in your domain or workgroup is an authenticated user.
Users defined is anyone who is in the domain user and local users groups.
