# FSLogix Profile Containers

As the successor of Roaming User Profiles and UPDs, FSLogix Profile Container has many advantages, such as:

* Can be mounted to any computer (including physical Windows client systems).
* The folder where the VHD is mounted is masked, therefore tricking the OS into believing that the profile is mounted locally and thus avoiding problems with file access by using junction points.
* FSLogix allows simultaneous read access to the profile when the user is connected to more than one session at a time.

FSLogix works with Office 365, for example, it can keep Outlooks OST files and OneDrive, though OneDrive sync app does not support running multiple instances of the same container simultaneously (<https://docs.microsoft.com/en-us/onedrive/sync-vdi-support>).

* Ability to keep certain directories local. By default, the profile container consists of the entire Windows profile except for the Temp and Internet Explorer cache folders. If needed, an administrator can specify what parts of the user profile must be persistent in the profile container. Any part of the profile that is excluded will be deleted at logoff.


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