Recover partition after aborted diskpart clean all command

Hi,

I've used diskpart clean all command on my 640GB hdd by mistake. But I aborted (Ctrl+C) it after about 15 minutes of beginning.

There was 4 partitions on it:
1. Windows partition (about 90GB).
2. Unallocated space (about 25GB).
3. Another partition (about 50GB).
4. Data partition (The rest of it and this is what I want to recover).

I have done MiniTool Partition wizard fast and complete scan and the result was two 3MB partitions.
I have run Acronis recovery fast and complete scan, fast scan has no result and complete scan has run for over 20 hours without finishing.
Then, I run TestDisk quick scan with no results. After that, TestDisk Deeper scan with the attached results. I tried to list the files in that partition but it told me that "Can't open filesystem. Filesystem seems damaged." as the second attachment.

What should I do next? please help.

Clean All is like shooting yourself into the leg - it writes all zeros on the disk. I am afraid you are out of luck. Sorry.

After going through your first post leisurely and having examined the TestDisk screenshots in depth, I may comment as follows.

TestDisk seems to have found atleast one partition of 456 GB. This could be your last data Partition.( Initially I thought it was showing your whole Disk)

Since you said that it had one 90GB Windows Partition, it becomes imperative to know 1. wherefrom that HDD came, 2. what Windows and bit version was on it and 3. How is it connected at present while you ran TestDisk.

If you are connecting the old 640GB HDD - which was an MBR drive that ran Windows 7 - now to a Windows 10, 64 bit system, you are complicating the whole issue of data recovery. :)

TestDisk had to dig out the NTFS boot sector from its backup to show you that 456GB partition, but it still failed to list the files because it is now running on Windows 10 and looking for data in 4096 bytes/sector size as ordained by Windows 10, 64bit. Atleast that is my thinking. ( Read the last line in the first TestDisk screenshot in your first post. "NTFS found using backup sector, blocksize = 4096, 456GB / 424 GiB")

You may be better off connecting that HDD to a Windows 7 system, run TestDisk from Windows 7 and do a deeper scan. It may still find the backup boot sector and read from 512bytes/sector size . In such a situation it may be able to list the files.

EDIT: If you still want to persist on doing it in Windows 10, change the Sector size from 4096 to 512 in TestDisk and then do a deeper search. You may find the appropriate screenshots in this post Solved Win 8.1 x64 and raw file system on external USB drive If you are sure that it was an MBR disk, select [Intel], then [Geometry]. If the first line shows Sector Size = 4096, then change it to 512 and proceed. Please note in that reference we were trying to change it from 512 to 4096 but here you will be changing it from 4096 t0 512.

jumanji said:

hmm... Since you aborted clean all after about 15 minutes, I presume that almost 75% (plus or minus) of your data may still be there. Please do the following:

This is only for exploration: Download, install and run GetDataback Simple Data Recovery Free demo version from here https://www.runtime.org/data-recovery-software.htm. ( Also read the How-to-Guides and Documentation on that page) Scan your 640GB drive.and check whether it shows all or some of your partitions and files in it.. That will be Level 1.



If Level 1 fails , try Level 2. Level 3 and then Level 4. Report the results. ( Post screenshots)


2. If it successfully shows your files - which however you may not be able to copy because it is only a trial version - you may try PhotoRec to carve out the files.

PhotoRec Step By Step - CGSecurity

Guide to using PhotoRec recovery software. ( Do not format your drive. I formatted only to show how PhotoRec can recover files even after formatting the drive. Straightaway go to the topic Recovery in it.)

jumanji said:

After going through your first post leisurely and having examined the TestDisk screenshots in depth, I may comment as follows.

TestDisk seems to have found atleast one partition of 456 GB. This could be your last data Partition.( Initially I thought it was showing your whole Disk)

Since you said that it had one 90GB Windows Partition, it becomes imperative to know 1. wherefrom that HDD came, 2. what Windows and bit version was on it and 3. How is it connected at present while you ran TestDisk.

If you are connecting the old 640GB HDD - which was an MBR drive that ran Windows 7 - now to a Windows 10, 64 bit system, you are complicating the whole issue of data recovery. :)

TestDisk had to dig out the NTFS boot sector from its backup to show you that 456GB partition, but it still failed to list the files because it is now running on Windows 10 and looking for data in 4096 bytes/sector size as ordained by Windows 10, 64bit. Atleast that is my thinking. ( Read the last line in the first TestDisk screenshot in your first post. "NTFS found using backup sector, blocksize = 4096, 456GB / 424 GiB")

You may be better off connecting that HDD to a Windows 7 system, run TestDisk from Windows 7 and do a deeper scan. It may still find the backup boot sector and read from 512bytes/sector size . In such a situation it may be able to list the files.

EDIT: If you still want to persist on doing it in Windows 10, change the Sector size from 4096 to 512 in TestDisk and then do a deeper search. You may find the appropriate screenshots in this post Solved Win 8.1 x64 and raw file system on external USB drive If you are sure that it was an MBR disk, select [Intel], then [Geometry]. If the first line shows Sector Size = 4096, then change it to 512 and proceed. Please note in that reference we were trying to change it from 512 to 4096 but here you will be changing it from 4096 t0 512.

Thanks jumanji for your reply. Unfortunaltely I've write the TestDisk result shown on my first post before reading your reply. However, I've made the process you've told me. You've asked some questions about the system:
1. This is the original HDD came with the laptop.
2. It was have Windows 10 Pro x64 upgraded from Windows 7 Pro x64 (Upgraded about 3 months ago).
3. The result of the first post result was using Hiren's Boot CD loaded into USB flash memory (The HDD was connected inside my laptop).

I've checked the sector size you mentioned and it was already 512 for DOS. Also, I connected the HDD to another computer using USB 2 adapter and performed quick and deeper scan under Windows 7 x64 and another scan under Windows 10 x64 with the same results (Now quick scan get the same result as deeper scan).
Here are the screenshots of the scan in Windows 10 (same as Windows 7):








Regarding GetDataBack, I've run the four levels of scan. The first three levels result was two NTFS 425GB empty partitions. Level4 scan result was also two NTFS 425GB partition with two system folders inside them in addition to 3 NTFS 3MB partitions, some FAT12 partitions, and one FAT16 32MB partition which has one data folder of my work. Here are the screenshots:

Level1 scan:



Level2 scan:


Level3 scan:




Level4 scan:







Should I do anything regarding the write I've mentioned in the beginning of this reply. Please advise for further process I should do.