Lost my partition after diskpart clean

laptopz50trash

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Apr 17, 2017
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Hello,

I will explain what happened from the begining. I have decided to swtich from W8 to W7, however during the installation it asked me to switch the disk type so I did that using diskpart clean command and now I have only one partition, C drive, which has 930GB space, I should have 1TB HDD anyways on lenovo z50-70 laptop. I have lost my D drive, which had the files I wanted to save, but now its gone. I tried programs like mini tool power data recovery, but it doesnt detect the lost partition, it just shows some partition that are of size 500mb and then it shows the C drive , but my D drive is still lost. Currently I'm trying testdisk deep search to see if it can find the partition im missing, any ideas how to solve my problem? Highly appreciated in advance.

 
Solution
When I still messed with data recovery. My tools of choice were Nucleus Kernel and Stellar Phoenix. They can scan the whole hard drive without partitions in place even.

Since you installed an OS on it afterward. Successful recovery became far less likely. Stop using that hard drive now. Every second Windows is running on it. It is writing damaging data. Worsening recovery chances.

It should be mounted on another computer with a working copy of Windows. You will need a recovery drive larger than the original drive for recovery. As the data recovery will pull everything off the drive and sometimes there is duplication. Be prepared that your folder structure may not be intact. Recover everything to the recovery drive. Then sift...
When I still messed with data recovery. My tools of choice were Nucleus Kernel and Stellar Phoenix. They can scan the whole hard drive without partitions in place even.

Since you installed an OS on it afterward. Successful recovery became far less likely. Stop using that hard drive now. Every second Windows is running on it. It is writing damaging data. Worsening recovery chances.

It should be mounted on another computer with a working copy of Windows. You will need a recovery drive larger than the original drive for recovery. As the data recovery will pull everything off the drive and sometimes there is duplication. Be prepared that your folder structure may not be intact. Recover everything to the recovery drive. Then sift through the mess to find your files. You can’t just go by how many files you had. The recovery will find all deleted files which still exist. Most will be broken fragments.

If you don’t have another computer. You’ll need to install a new larger hard drive. Then install Windows on it and perform the recovery.

In the future. If your data is important. Always keep a backup. Hard Drives and SSD fail. If your data is very important keep two rotated backups with one always stored in at least a fire and water resistant safe. Better yet one off site and one local. Off site for security against fire, flood, theft, ransomware encryption or unexpected failure of backup drive before restore completion. One local for quick recovery.

Good Luck.
 
Solution
Well I don't have option to replace the drive so I'm using my Pc ATM. The only thing is that all these programs like minitool power data recovery , partition wizard can only detect 2 partitions , so all I can. Do is to perform a search on C drive because the other partitions are deleted or can't be detected I guess. I will try the program u recommend and update
 


1. 930GB is the expected size of a 1TB HDD. Nothing is 'lost' there.

2. the clean command in diskpart does indeed wipe the entire drive. All partitions.

3. You then installed Win 7.
Which results in the 2 partitions you see. 500MB, and the rest is the C partition.

If testdisk, minitool, and everything else you've tried cannot find your lost D partition...that's what the clean command did.

This is specifically what backups are for.
 
https://www.tapatalk.com/groups/collegecafefr/s03-yt0-c-and-s03-yt0-d-recovered-and-restored-t1310.html
I'm at school, cannot walk you through this...however, buried in the above article I posted is a process of partition recovery which worked for me one time, did not work for me another time. I have nothing to sell, if you speed-read through it, you might find something useful. In a nutshell:
-- discovered C-partition unallocated; D-partition en tact
-- full imaged found D-partition onto external media
-- found and recovered the "buried" C-partition, D-partition became unallocated
-- full imaged found C-partition onto external media
-- made sure C and D full images were good images
-- formatted entire HD, restored C-partition, then D-oartition
-- marked HD's C as Active, made sure C was Primary, D was Logical I believe
that's my post in a nutshell :)