Questions about portability

Hello everyone. I have a few questions about Unity 3d portability from one device to another. I already know that Unity 3D to another device goes to run (after the re-registration of the product), but a couple of things I would still be interested.

Q1) Needs Unity 3D administrator privileges to run or other activity? if so could someone give me a list of activities for which Unity 3D you need administrator privileges.

Q2) Stores Unity 3D on the device running the data? I mean the settings window layout or data logging (eg. Usernames or product keys) or all stored somewhere in the Editor folder in the installation directory?

Q3) When Copy the project folder on the USB drive, I would later be able to open the project on another device? with different words, the data belonging to a project stored somewhere other than in a project folder or project folder stores all data belonging to the project?

-DrMrkev(Unity3D 5.0.0)