A data sharing session technique is described. In one or more embodiments, a first user login session is initiated by the operating system of the computing device to run in the context of a first user profile of the first user. A request is received by the operating system to execute a first user login session in the context of a second user profile of the second user. By the operating system, the second user profile is associated with a shadow login session created in the first user login session of the computing device's operating system, so that the interaction of the operating system and the second user is associated with the second user profile, The interaction of the system with the first user is associated with the first user profile.
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