Hello,
Kindly refer the following Documents:
The error message "Unable to create new backup folder. Access denied" is returned when creating a backup-to-disk folder within Backup Exec for Windows Servers.
http://support.veritas.com/docs/239499
An error "Unable to create new backup folder. Access denied" is generated while creating a new backup to disk folder on a Windows 2003 /XP system.
http://support.veritas.com/docs/273224
Thank You,
Shweta