Utility partitions, which are usually small partitions installed on the disk by OEM vendors like Dell, Hewlett-Packard, and IBM, can be selected for restore. These utility partitions contain system diagnostic and configuration utilities and are usually restored during disaster recovery.
However, utility partitions can be selected during a normal restore job provided the following requirements are met:
Utility partitions, but not the data belonging to the partitions, must be present on the system.
You must have Administrator rights to restore utility partitions.
The system on which the utility partition data is being restored should be the same system from which the data was originally backed up, unless you are required to do a redirected restore.
Utility partitions being restored must belong to the same vendor. For example, Dell utility partitions cannot be restored to a Compaq system.
The size of the utility partition on which the data is being restored must be equal or greater in size than the utility partition that was backed up.