Concept:The Control Panel is the central Windows location for changing user account details and system settings.
Explanation:A user account name identifies a person who uses the computer.
To change this name, you must access the user account management tools in Windows.
The Control Panel is a component of Microsoft Windows that lets you view and alter system settings.
It consists of several applets, including one for controlling user accounts.
Through the User Accounts applet, you can change the name of any user account on the system.
In contrast, the Settings app is the modern interface, Computer name refers to the device, and Code panel is not a standard Windows feature.
Therefore, the Control Panel is the correct place to change a user account name.
Answer:D. Control panel