Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

So I think ignored too many of my computer's warnings and disconnected my external hard drive without properly ejecting it and now it seems the file system is corrupted. Are there any programs that can help me recover this data? I think the data should still be mostly intact and the drive didn't have any physical damage. Thanks for the help.

I'm using a mac, but I also have access to windows. I've tried using testdisk and it is able to find these partitions:

Disk /dev/rdisk1 - 1000 GB / 931 GiB - 1953458176 sectors
 Partition               Start        End    Size in sectors
HPFS - NTFS                 2048  786098175  786096128 [skinny]
HPFS - NTFS                 2048 1953458175 1953456128 [skinny]
FAT32 LBA              786108645 1953449983 1167341339 [fat]
HPFS - NTFS            847538176 1953454079 1105915904

It appears that there are duplicate entries for the first partition but I'm not sure how to fix that within testdisk. The instructions it shows are "Use Up/Down Arrow keys to select partition. Use Left/Right Arrow keys to CHANGE partition characteristics: *=Primary bootable P=Primary L=Logical E=Extended D=Deleted"

share|improve this question
There are hundreds of similar questions already about data recovery. Please do a little research – recovery software exists en masse. – slhck Mar 2 '14 at 7:53
@slhck I've tried using testdisk and now have a more specific question that I don't believe is still a duplicate. – connor Mar 2 '14 at 8:45

Without you mentioning an OS, you can run chkdsk from within Windows or fsck from Linux to repair file system issues.

share|improve this answer

If the partition is visible (you can access to it but not to the files) you can try out Unstoppable copier, it will take a long time to copy the corrupted files, but it will recover all the visible data.

share|improve this answer
^ do this pronto. Just incase the HDD has a fault in it. HDD's can die at anytime, especially with erros in them. – Pathfinder Mar 10 '14 at 12:12

Your partition table/file system may be corrupted during unsafe removal of Disk. In that case recovering partition will fix the problem.
This recovery example for testdisk guides you through TestDisk step by step to recover a missing partition and repair a corrupted one.

You may also try following softwares

Following software has the ability to preview partition data before recovery

share|improve this answer
thank you for your answer. I'm trying to use testdisk, but the guide they have doesn't cover the situation I've posted. – connor Mar 8 '14 at 1:24

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .