Guest credentials for Windows trial VM

Hello, I have set up a virtual machine using the Windows 10 trial VM for Hyper-V (https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/, preview 15.15). I would like to use Powershell Direct to run Powershell scripts on my VM. I believe I've successfully enabled PSRemoting. I enter the command "Enter-PSSession -VMName $VMname" on my host. I am then asked to enter the credentials of the guest machine. I tried searching in the installation instructions and learned that one can sign in as IEUser/Passw0rd! by default. However this doesn't seem to be a valid credential. I can't tell if there is a default credential, a credential is stored somewhere on the computer, or I need to make a credential. I would greatly appreciate your advice on the matter.

Thank you.