If you want to change the Administrator account name (sometimes, we can be boring with that name or your have your own purpose), I’ll share the solution…
The default account name for Administrator is Administrator (Microsoft set it as default name) (figure-1).

Follow these steps:
1. Open Control Panel via Start - Control Panel menu.

2. Open Administrative Tools, you can open it by double click Administrative Tools icon that located inside Control Panel.

3. After Administrative Tools is opened, double click Local Security Policy.

4. Inside Local Security Policy, click Security Options.

5. Find Accounts: Rename administrator account.

6. After Accounts: Rename administrator account Properties is opened,

just change the value in textbox (default value is Administrator).

7. You will bring back to main screen of Local Security Policy and the value has changed.

8. Restart your computer and you will see that Administrator account name has changed as you wish.

(article no:0064)