How to Recover Lost Partition

Mostly, Partition Table Doctor will help you to recover partition except for physical damage, or Harddisk failure or other storage medium failure.
Mostly, scandisk will destroy more than they retrieve. Please stop scandisk program when the computer is starting.

Partition was recognized by system depend on partition table and boot sector of partition. For more partition table details see "About Partition Table" If partition table or boot sector of partition was destroyed by virus or deleted accidentally, you will not see partition you need. But the partition was not really lost.If you know more knowledge about partition table and boot sector of partition, you could manually use "Edit Sector" to recover partition.
Of course, Partition Table Doctor will automatically check & repair partition table or boot sector of partition error to recover partitions.

MBR And Partition Table Error:
SYMPTOMS:

- When we try to boot after hardware testing procedures, we see just blank screen without any messages
- Not found any Active Partition in HDD
- DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER
- Invalid partition table
- Invalid Drive Specification messages
- Partition deleted by fdisk or Partition Magic or Super Fdisk
Partition Table Doctor will automatically repair most of partition table errors; also you can use Rebuild Partition Table.

Boot Sector of Partition Error:
SYMPTOMS:
- Missing Operating System
- Invalid media type reading drive
Abort, Retry, Fail?
- File system is displayed as RAW
- Windows may ask if you want to format the drive
- File names contain weird characters
- Sector not found messages
If boot sector of one FAT16/FAT32/NTFS partition was corrupt, Partition Table Doctor will mark it with "X"
Fixboot is very good at repairing boot sector of partition.

Reboot computer and you will find "everything is back as if nothing had happened".

At last, go into Windows Explorer and copy your data from the repaired drive to the working drive.

See also:
How to Recover Lost Partitions External Harddisk Drive From.