You can change the admin user on a Windows 10 PC through the Control Panel. However, you'll need to be already logged into an admin account to do it.

Windows 11, much like prior versions of the operating system, lets you use multiple accounts on the same computer, so if you share a computer with multiple people, each one has their own profile. But ...

A computer administrator can delete a user account without needing a password. That’s a huge drawback, but it is also by design, giving admin users the ultimate authority. It may happen that you have ...