Initial Settings : Change Admin User Name2019/02/04

	If you'd like to change Administrator Account Name for some reasons like security, it's possible to change like follows. On CUI configuration, set like follows.
[1]	Run PowerShell with Admin Privilege and Configure like follows.

Windows PowerShell
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# for example, change the name [Administrator] to [ServerworldAdmin]
PS C:\Users\Administrator> Rename-LocalUser -Name "Administrator" -NewName "ServerworldAdmin" 

PS C:\Users\Administrator> Get-LocalUser 

# changed
Name               Enabled Description
----               ------- -----------
DefaultAccount     False   A user account managed by the system.
Guest              False   Built-in account for guest access to the computer/domain
Serverworld        True    Administrator of this Computer
ServerworldAdmin   True    Built-in account for administering the computer/domain
sshd               True
WDAGUtilityAccount False   A user account managed and used by the system for Windows Defender Application Guard scen...

Initial Settings : Change Admin User Name (GUI)

	On GUI configuration, set like follows.
[2]	Run [Server Manager] and Open [Tools] - [Computer Management].

[3]	Open [Local Users and Groups] - [Users] on the left pane and and Right-click [Administrator] and select [Rename] on the right pane. Then, Change any name you like.

[4]	Administrator Name is just changed.

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