This post by David Papkin is about Configuring User Profiles in Windows 10
Your user profile is a collection of settings that make the computer look and work the way you want it to. It contains your settings for desktop backgrounds, screen savers, pointer preferences, sound settings, and other features. User profiles ensure that your personal preferences are used whenever you log on to Windows.
A user profile is different from a user account, which you use to log on to Windows. Each user account has at least one user profile associated with it.
Windows 10 roaming profile has changed a little bit, it uses new version of user profile called v5
For example, if you try to deploy Windows 10 in an environment that uses roaming, mandatory, super-mandatory, or domain default profiles in Windows 7, you experience the following behavior:
After you use a user account that has an existing Windows 7, Windows 8, or Windows 8.1 profile to log on to a Windows 10-based computer for the first time, a “v5” version of the profile is created.
By default, this feature is enabled in Windows 10 clients and uses a .V5 profile folder extension unless the feature is specially disabled. On older operating systems, the default was “v2”
This video demo by David Papkin shows Configuring User Profiles in Windows 10
This concludes this post by David Papkin Configuring User Profiles in Windows 10