I\'m using the Google Cloud Console to create a new Windows VM. I\'ve tried both Server 2008 and 2012. In either case I cannot log into the VM once it\'s up because it says
We recently changed the way users log into new Windows instances. All the details should be at https://cloud.google.com/compute/docs/operating-systems/windows#log_into_a_windows_virtual_machine but please let me walk you through the steps.
Once you created a new Windows instance in the Developers console, please go into the new instance details page:

and then click "Create or reset Windows password".

You can now choose a local Windows username in the dialog [by default, this is your gmail without "@gmail.com"]

Click "Set" and wait until the new password is displayed to you.
Hope this helps. --Alex