The sector that contains the hard disk master boot is attacked the most by viruses, by destroying the main boot sector of the DPT (partition table), virus can easily damage the hard disk partition information. In general, damage to the partition table is not a physical damage, but the partition data is destroyed. So you can use some software to repair the damaged partition table.
Under normal circumstances, after the hard disk partitions, backup a partition table to floppy disk, CD-ROM or USB drive is very wise. The well-known anti-virus software could offer a complete solution. In addition, there is a corresponding repair method for hard disk partition table with no backup also, but the success rate is relatively low.
In addition, Disk Utility DiskMan also plays a role. Rebuilding the partition table is its “killer” feature which is very suitable for repairing damaged partition table.
For the hard disk partition table which has been adjusted or severely damaged by partition software (or virus), causing the hard drive and system failures, DiskMan can re-create the partition table through unspoiled partition boot record of information. Go to the menu bar, select “rebuild the partition table”, DiskMan began to search for and reconstruct partitions. DiskMan will first search cylinder 0 head 0 sector starting from the two hidden sectors, and tray to find the partition table moved by viruses. Next, search the first sector of each head. The search process can be “automatic” or “interactive”. The automatic way discover each partition and is suitable for most situations. The interactive way will give a prompt for each partition and to decide whether to retain by user. When the automatic renewal of the partition table is incorrect, you can use interactive way to re-search.
However, note that reconstruct the partition table can’t ensure a 100 percent recovery of the partition table, unless you previously backed up the table, and then restore the previous backup partition table. So, normally backup partition table is very necessary!
