I found a solution reading others posts..
From a Managed client, Help and support > Troubleshooting... > Profil of policies > Export > policy.xml
And on the Unmanaged client, Import > policy.xml
Is there a way with less manipulation ?
to pbogu:
We have some plateforms with less than ten machines which can't be connect to the network where the manager is installed... And I don't want to install X times a manager for 3 or 4 clients..