The following article enables users to change the Administrator Password for Windows Server 2012 R2/Windows Server 2016. To change the administrator’s password in Windows Server
2012 R2 or Windows Server 2016, simply complete the following steps:
1. Log in as an Administrator User to your Windows Server 2012 R2 or Windows Server 2016.
2. Press Ctrl+Alt+End if you logged in to the Windows Server via RDP. Using this combo, We will find below options: