Quite often, users of Windows-systems have to deal with the change of registration entries. In this case, we are not talking about the "accounts" of Microsoft. The main issues related to how to change an account in Windows 10 will relate exclusively to local registrations. However, here it is necessary to build on exclusively a specific situation, since there can be several basic solutions.
How to change an account in Windows 10 using standard procedures?
To begin with, changing a registration record may imply at least two options: logging out and logging in with a different registration or changing the data of the “account” itself.
The simplest thing that can be done in the first case is simply to use the Start menu with the choice of logging out, but only on the condition that there are several registrations on one computer terminal (otherwise, such a line will be absent in the main menu). But even in this situation, you can use the upper case of the main menu settings, where the exit point is selected.

As for your own settings, you can use the standard settings section for this, in which the group of account settings is selected. Here you can change your own data, configure login parameters, add users to the family section, etc., as well as set the login mode not under local registration, but under Microsoft "account". What is it for? In principle, there is not much difference when entering the system. But when using the “Microsoft” registration, the user immediately receives certain rights that may not be provided for by local registration. In addition, there can also be noted the availability of access to additional services that are built into the operating system itself, but can be blocked for local registration (the same access to the "Store"). But, since such situations are not considered now, let us move on to practical measures to determine actions specifically for local registrations.
How to change the local account in Windows 10 through the "Control Panel"?
A more understandable method for everyone is to use the corresponding section of the “Control Panel”, which can be called up via the PCM on the start button or by directly entering the control command in the Run console.
In the matter of how to change your account in Windows 10, you should start from the classic version, which implies entering the corresponding panel menu with a transition to either your own registration or managing another account. That in the first, that in the second case, you can change absolutely all the parameters, up to the username and password, but only if the system is logged in at the administrator level.
However, this does not mean at all that a user who has logged into the system by his own registration cannot change anything. Using the appropriate available settings, you can change the account name in Windows 10, configure the use of a new password, add a photo that will be displayed at the login, etc.
Group Membership Setting
One of the most interesting parameters is adding users to groups, when after that additional rights and permissions are activated automatically or manually to access system parameters or to run programs or, say, installation processes.
Here the question of how to change the account in Windows 10, is solved exclusively at the level of the administrator of the computer. To do this, through the Win + X combination, you need to select computer management, go to the local users and groups section, open the users folder and add users on the group membership tab, followed by checking names (for example, if this is a group of administrators).
Brief summary
In principle, to change the rights, but not the registration entries themselves, you can use the editors of local and group policies or even the system registry, but to ignorant users this option may seem quite complicated, and the above solutions for the first time will be enough in excess. As for the main question, there should not be any special difficulties. In most cases, if the user is his own administrator (the only registered user in the system, not counting the super administrator), you can use either the options menu or the “accounts” control section from the “Control Panel”, which looks simpler and more attractive.
No other methods besides using the tools of the operating system in this case work. So, if the user is invited to use some third-party utilities, you can be absolutely sure that this is a fake of pure water.