Hi @Red2100 , you need to unjoin the device from the on-premises domain before joining it to Entra ID using
dsregcmd /leave
. You can also use the Remove-MgDevice -DeviceId
command to fully remove the device.
You do need a Windows Pro licensed device to be able to use Entra ID join.
Please let me know if you have any questions and I can help you further.
If this answer helps you please mark "Accept Answer" so other users can reference it.
Thank you,
James