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:
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Utility partitions, but not the data belonging to the partitions, must be present on the system.
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You must have Administrator rights to restore utility partitions.
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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.
See About performing redirected restores of utility partitions.
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Utility partitions being restored must belong to the same vendor. For example, Dell utility partitions cannot be restored to a Compaq system.
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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.