Question Ajouter un PC à un domaine avec credential

oui et non il accepte plusieurs format

extrait de la doc :

-Credential
Specifies a user account that has permission to join the computers to a new domain. The default is the current user.

Type a user name, such as "User01" or "Domain01\User01", or enter a PSCredential object, such as one generated by the Get-Credential cmdlet. If you type a user name, you will be prompted for a password.

Tu as raison