Backup Exec 2012 Deduplication Disk Storage creation fails

Hello,

I need some help on start BE 2012 configuration.

I've downloaded the trial and installed it. At the creation of a deduplication disk storage I folow all the steps and after click the "finish" button the BE returns the folowing window:

The system is a Windows Server 2008 STD edition.

What can be worng?

Thanks.