How do I recover Fdisked drives?

What is partition?
To divide memory or mass storage into isolated sections. In DOS systems, you can partition a disk, and each partition will behave like a separate disk drive. Partitioning is particularly useful if you run more than one operating system. For example, you might reserve one partition for Windows and another for UNIX.

In addition, partitioning on DOS and Windows machines can improve disk efficiency. This is because the FAT system used by these operating systems automatically assigns cluster size based on the disk size: the larger the disk, the larger the cluster. Unfortunately, large clusters can result in a wasted disk space, called slack space. There is an entire sector of the software industry devoted to building utilities that let you partition your hard disk, such as Fdisk, EaseUS Partition Master, Partition Magic and Super Fdisk.

Explanation: The Fdisk commands are typically run to prepare a new hard disk for use - enabling the division of hard drive and the installation of an operating system, application programs & eventual user data. The Fdisk command has been around for a long time, formerly they were stand alone DOS programs before being integrated into Windows.

Where previously the computer would boot and be usable, systems that have been Fdisked often report the following errors: (these errors are frequently displayed on a black screen with white text)

No boot device
Operating System not found
Primary Hard Disk not found. Press F1 to Continue
Master Boot Record Not Found
Invalid or corrupt FAT
Invalid partition table entries
Invalid sector
Cannot find file or program
Invalid command.com
Primary/Secondary Hard disk failure
Non system disk
Disk error

Partition Recovery Steps: We recommend that you use our professional partition recovery tool - EaseUS Partition Recovery to recover lost partitions after have been Fdisked. If EaseUS Partition Recovery cannot help you, We recommend that you can use professional data recovery software, such as free data recovery software - Data Recovery Wizard Free Edition to recover files.

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Please see: How to recover Fdisked drives?

Note: Under no circumstances should you run a repair utility such as Scandisk or Chkdsk. It's also very important that nothing else is done to the drive - the best option is to power down and remove the drive from the machine.

When installing / upgrading computers, the next step after a Fdisk or format is often to install an operating system, if this has been done please refer to our data recovery from re-installed operating system (or Ghosted image) page.

Common problems related to data loss and our solutions