I did it !!!
To solve this error, the only thing that works is the “real” sysprep.
So I sysprep my machine before uploading and it’s ok when deploying.
For those who search how to activate windows, I create a .bat file i place in C:\ and which contains :
[CODE]@echo off
REM source http://www.sizzledcore.com/2009/10/26/how-to-change-windows-7-product-key/
REM insert Windows Key
slmgr.vbs -ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
REM activate Windows
slmgr.vbs -ato
REM Delete file
del c:\Insert_Windows_License_Key.bat[/CODE]
This .bat has to be executed as Administrator, or simply exec it if already connected as local Administrator.
Well, that adds another step and it’s not very “automated”, but this way, i have the real license key, and anyway, i manually log in with local admin account …
Thanks for your help !