A Windows concept refering to allow a user to see their information and settings in differente computers saving the user profile in a network shared folder instead the local hard disk.
A roaming user profile is a concept in the Microsoft Windows NT family of operating systems that allows a user with a computer joined to a Windows Server domain to log on to any computer on the same network and access their documents and have a consistent desktop experience, such as applications remembering toolbar positions and preferences, or the desktop appearance staying the same