If the default administrator name isn't to your liking, here are the exact steps to change the administrator name on Windows 10.

Windows 10 lets you select a reputation for the administrator account while establishing the OS or allowing the user account. Once the admin user account is created, the name is nearly set which is not that simple to make changes. This is also true in Windows 10 if you've linked the administrator account to Microsoft account.

There can be a variety of reasons to alter the admin name. Like the name not yours, spelling mistake, improper capitalization, etc. No matter the reason, you can easily alter the Windows 10 administrator name. That will help you with this, listed here are the steps you should follow to alter the administrator name on Windows 10 from the Settings app and User Accounts (netplwiz) tool.

Follow any of the below methods after which name is going to be changed in just a couple of clicks.

Note: If you work with a nearby account, stick to the second method. If you are using a Microsoft account, stick to the first method.

How to change administrator name on windows 10 from Settings

Open Settings by pressing the "Win + I" key.
After opening the Settings app, go to "Accounts".
Select "Your info" around the left panel. This is when you will find the user settings.
Click "Manage my Microsoft Account" link.
The above action will open the Microsoft account settings in your default browser. If prompted for a password, authenticate yourself.
In the account page, click on "More Accounts" and choose "Edit Profile".
Click on the "Edit name" link beneath your name.
Type the new name and click on "Save".
Close the browser tab/window.

That is all. When save the changes, you are completed with changing the name in the Microsoft account. That change will reflect in Windows 10 immediately. If not, give Windows 10 serious amounts of sync with your MS account.

How to change administrator name in the User Accounts tool

Using the netplwiz tool in Windows, you are able to change the administrator name. This process works for both local and Microsoft accounts.

Open the Run window with "Win + R" keybinding.
Type "netplwiz" in the field and click on "Ok".
Select the administrator account in the list.
Click the "Properties" button.
Now, alter the name within the "Full Name" field.
Click "Apply".
Click "Ok" in order to save changes.
Close the netplwiz window.

That's all. You're completed with the admin name alternation in Windows 10.

Note: If you are using the Microsoft account, the alterations made that way won't reflect in your Microsoft account. Moreover, Windows might resync the old name from the Microsoft account. As a result, I suggest you stick to the first method when using the MS account with Windows 10.

Note: If you've enabled the hidden administrator account, you can stick to the same steps as shown within the second method to change its name.