By Emily / Last Updated August 25, 2020

The MBR on Seagate hard drive is damaged

"Hi, I have a Seagate external hard drive. It was working fine until yesterday I removed its USB from the computer without selecting 'safely remove hardware and eject media' option. When I plugged it back, the computer cannot detect it anymore. Then I ran a scan with the HDD regenerator and it told me that the MBR is damaged. So do you guys know a reliable Seagate MBR repair tool that can help repair the device? Thanks."

Free Seagate hard drive MBR repair tool

MBR (Master Boot Record) is a special type of boot sector located at the beginning of the partitioned disk. It is also sometimes called the "master partition table" and holds information on how the partitions, containing file systems are organized on the disk.

So when the MBR on Seagate external hard drive gets damaged, you will lose the accessibility to any partitions, and all data stored in the hard drive. If the Seagate hard drive is the primary hard drive, your Windows will fail to boot in the disk cloning operation.

In those cases, we recommend using the free AOMEI Partition Assistant Standard. It comes with a function named "Rebuild MBR", which can help you rebuild damaged MBR on Seagate and other branded hard drives in all editions of Windows 10, Windows 8, Windows 7 and Windows XP/Vista.

3 Steps to repair damaged MBR on Seagate hard drive

Now, you can free download the Seagate MBR repair tool and learn how to rebuild corrupted MBR on Seagate external hard drive.

Step 1. Install and run AOMEI Partition Assistant Standard. Right-click the Seagate hard disk and choose "Rebuild MBR" from the drop-down menu.

Rebuild Data Disk MBR

Step 2. Choose a suitable MBR type according to your current operating system and click "OK".

Choose MBR Type

Step 3. Click "Apply" and "Proceed" to commit the pending operation.

Apply

Attention:
If the Seagate hard drive is the system drive, and now you cannot boot from this drive now because of the corrupted, you can first create a bootable USB stick on a working computer via AOMEI Partition Assistant Standard.

Make Bootable Media

Then insert the bootable USB drive into the computer suffering boot failure, change the boot order to make the USB drive first in BIOS. Once you log in, the AOMEI Partition Assistant Standard will run automatically, and then you can perform the same operations as above to rebuild damaged MBR on the Seagate system hard drive.

Bonus guide: repair Seagate MBR via Command Prompt

If you have the original Windows Installation Disc, you can take following steps to repair damaged MBR via Command Prompt.

Step 1. Connect your external hard drive using a USB cable to the computer.

Step 2. Shut down your computer and insert the Windows installation disc, and boot the computer from it.

Step 3. At the Welcome screen, click "Repair your computer">"Troubleshoot">"Command Prompt".

Step 4. When Command Prompt successfully loads, type the drive letter of the external hard drive. For example, type "E:" and then press enter.

Step 5. Now, execute the below commands to fix MBR on the selected hard drive.

  • bootrec /fixboot

  • bootrec /fixmbr

Conclusion

For users without original Windows installation Disc, AOMEI Partition Assistant Standard is a nice Seagate MBR repair tool to fix damaged Master Boot Record on both internal and external hard drives. If you upgrade to Professional version, you can unlock more amazing functions including allocating free space from one partition to another, recovering lost partitions, migrating only OS drive to SSD/HDD, etc.