partition found but can't be recovered

How to use TestDisk to recover lost partition
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klement
Posts: 2
Joined: 03 Nov 2018, 11:46

partition found but can't be recovered

#1 Post by klement » 03 Nov 2018, 13:18

Hi all:

I will try to explain as good as I can... from de beginning. Let's start.

I had an 1TB hard drive with 2 partitions: the system partition (C:) and the data partition (D:). On C partition I had a Windows 10 Pro installed. I cloned C: into a new SSD drive (everything ok). Then I had a C: partition and a D: partition. I deleted C partition, because my intention was to enlarge D partition (to be 1TB, in other words, to occupy the full hard drive). Here I made a mistake:

I boot using SSD drive, so I had one drive (SSD with the system partition, running ok), and the 2nd drive, that was a free space + data partition ("old" D partition). My intention was, as I said, to enlarge D partition. I run the disk administration on Windows, and I used the option "extend volume". It worked, but I saw something strange: a D partition (extended) and another D partition (the "old" D partition). I misunderstood what was happening, because I thought than I should have just one D partition (not an old D partition and an additional D partition, that was, in fact, the old C partition). Result: I deleted accidentally D partition... it contained all my videos, photos, acreditations, projects... EVERYTHING. My wife is really angry with me, so I have lost my weeding photos...

What have I proved?

I have used (many times) TestDisk. It has found old C partition (I have restored it), and it also founds D partition, but I get this error (extracted from my log):

Code: Select all

HPFS - NTFS          15820 167 28 137421  95 18 1953515520 [Dades]
     NTFS, blocksize=4096, 1000 GB / 931 GiB
This partition ends after the disk limits. (start=254158848, size=1953515520, end=2207674367, disk end=1953525168)
BAD_RS LBA=4642697597 9508082
check_FAT: can't read FAT boot sector
check_part_i386 failed for partition type 0E
     FAT16 LBA            288994 142 42 350495 120 46  988012184
This partition ends after the disk limits. (start=4642697597, size=988012184, end=5630709780, disk end=1953525168)

recover_EXT2: s_block_group_nr=0/53, s_mnt_count=5/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8176
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 1764352
recover_EXT2: part_size 14114816
Then, the program says than I can't recover this partition:
Captura de pantalla de 2018-11-03 13-16-14.png
Captura de pantalla de 2018-11-03 13-16-14.png (63.68 KiB) Viewed 163 times
I wold like to recover this one called "Dades"... I don't know what can I do... it is impossible to recover? I just want to try all possible options.

Thanks to everybody.

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cgrenier
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Re: partition found but can't be recovered

#2 Post by cgrenier » 04 Nov 2018, 09:12

On next screen does TestDisk lists another Dades partition ? If it's the case, recover it ;-)
If not, you can use TestDisk, Geometry, set the number of cylinders to 137422, TestDisk will not complain about the Dades partition starting at cylinder 15820. Try to list and copy its files.
In the worst case, it's always possible to use PhotoRec to recover your data.

klement
Posts: 2
Joined: 03 Nov 2018, 11:46

Re: partition found but can't be recovered

#3 Post by klement » 04 Nov 2018, 16:48

Dear cgrenier:

This has worked! I'm really happy about this software! I will recommend your soft to everybody. No doubt about how strong are your skills.

Thank you so so much!!!

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