We'd like to know if you are referring to Changing the Display name of the local User Account? If yes, you may refer to this link on how to rename a Windows 10 local user account. Or if you're referring to your Microsoft local account you may follow these steps:
- Use the Windows key + X keyboard shortcut to open the Power User menu and select Control Panel.
- Click the Change account type link.
- Select your local account.
- Click the Change the account name link.
- Enter the new name for the account.
- Click the Change Name button to complete the task.
We'll keep an eye out for your response.