After Windows Server Instance order, you need to setup Password via NoVNC console, found in your service tab.
Please follow the steps:
Go to "My Services" tab
Select your new Windows Server instance
Click on the NoVNC console
Once you see the Windows Welcome screen, follow the setup instructions and enter your new STRONG password
You can Reboot your server to make sure all settings are applied
Screenshot.
If you find any problem, contact us via Live Chat or Ticket Desk.