Once
you are connected to the Windows Desktop, we highly recommended that
you immediately change your Administrator password. From the Windows
Start, select Search programs and files and enter user accounts. Hit enter to open the User Accounts dialog.
In the User Accounts dialog, select Change your password to change your administrator password.
In the User Accounts dialog, select Change your password to change your administrator password.
from https://community.hpcloud.com/article/changing-your-administrator-password-windows
