You can set up Windows security with the Backup Exec service account to protect your data.
Depending on how the Windows network is configured, change security properties for the following scenarios:
You can change Windows security to give the Backup Exec service account administrative rights in the appropriate domains and workstations. You must grant the Backup Exec service account administrative rights to give Backup Exec access to the administrative shares (for example, C$) and the ability to protect the Windows registry.
Use the Active Directory Users and Computers tool and Domain and Trusts tool in the Active Directory administrative tools group to change Windows security properties.
More Information
Changing Windows security to back up servers (only) in one domain
Changing Windows security to back up servers and selected workstations in one domain
Changing Windows security to back up servers in more than one domain
Changing Windows security to back up servers and workstations in more than one domain