Partition recovery program is used to recover partition from hard disk. Partitions are the logical distribution of hard disk into various parts. Logical distribution of hard disk results in saving of files. Partition has MBR section that is called boot section. This boot section mounts the disk from system. The partition of hard disk is done depends upon user?s choice. Partitions have files system so as to keep the information of the data in the hard disk. If information in file system of hard disk is corrupted or lost then there will be loss of data. The partition will become inaccessible and that is the reason of data loss. When partition is lost then the data is lost in bulk. But, the recovery of partition after loss can be recovered. But what can lead to partition loss from hard disk. Ways are there which results in hard disk partition loss. Virus attack if caused in the hard disk, results in loss of files and sometime complete loss of partition itself. If external hard disk is ejected abruptly may result in loss of data. Header corruption result in inaccessible of partition and data too. However, your partition can be lost but there are ways that can recover your lost or deleted partitions. Partition recovery programs are there that can recover the data using recovery tools. This recovery tool is one of the best recovery tools amongst other, using this tool you can repair your PST files. Repairing tool can repair your PST file as well as OST and can make Outlook work properly.