How do I set my Windows administrator password?

Select and click on your instance name

change to console tab and click OK to begin password setting

Set the password

Password is set

Login into Windows on console

Additional you can connect with Windows Remote Desktop(RDP), make sure you had added allow 3389 rules to the security groups

Tips:

• Account : Administrator is require you to set the password over console whenever you launch the instance

Cloud-init script

Create new user with preferred password and disable admin/administrator account

#cloud-config
users:
  -
    name: Cloud-user
    primary_group: administrators
    groups: administrators
    passwd: YOURPASSWORDHERE
    inactive: False
runcmd:
  - "net user administrator /active:no"
  - "net user admin /active:no"
  - "shutdown -r"

Login with Cloud-user