Most of the demo VMs I create are on my local Client Hyper-V, but occasionally I make one available to a prospect or client and need to give them a user other than the administrator account.
Creating the user account itself is easy, but the bit I usually fail to remember how to do, is to give the user the rights to sign in remotely.
When this right has not been granted, an error message like the below will be displayed:
To sign in remotely, you need the right to sign in through Remote Desktop Services. By default, members of the Administrators group have this right. If the group you're in doesn't have this right, or if the right has been removed from the Administrators group, you need to be granted this right manually.