How to Change password Windows Server 2008, 2012, 2016, 2019 Print

I. Change password Windows Server 2008, 2012, 2016, 2019 via Command Line

1. First, open an administrator Command Prompt (assuming you have administrator privileges). To do this, type cmd into the Start Menu. Right-click on the Command Prompt entry and choose Run as administrator. For Windows Server 2019, please click on Start -> Scroll to Windows System -> Command Prompt.
2. Type the following command: net user Administrator NEWPASS

then press Enter where NEWPASS is the new password, make sure you have Uppercase, lower case and number with at least 6 letters.

II. Change your Server Administrator Password in Windows Server 2012

1. Log into your server via Remote Desktop.
2. Press your Windows key and type Administrative Tools.
3. Double click on Computer Management.
4. Expand Local Users and Groups.
5. Click on Users. 
6. Right click on Administrator. Click on Set Password > Proceed. 
   
7. Type your new password in both fields then press OK.

III. Change your Sever Administrator Password in Windows Server 2008 R2 

1. Log into your server via Remote Desktop.
2. Right click on Computer  and select Manage.
3. Double click Configuration.
4. Expand Local Users and Groups and then select Users.
5. Right click on Administrator and choose Set Password and then click Proceed.
   
6. Type in the new password and select OK.