Hi and thanks for your response.
Not sure I have all understand or if I have well explain my problem.
It's sertainly due to my english :-)
The problem is not the restoration because I can restore from the DLO Agent or with the "Search for files to restore" but for administration it's better to have access to the restore tree in the restore tab.
And up to now, It spent 20 seconds to open the restore tab and the restore tree is unavailable for each laptop in the windows.
I have put a pdf in attach to have print screen of what I explain.
I also confirm that my DLO Admin user has full restore privileges.
Perhaps It's due to encryption key but is it, as I am able to restore with another method.
Thanks,
David