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How to recover lost data from a hard-disk ?

Hello everybody, I really need your help in this problem ...

Few days ago, my uncle needed to recover his laptop, but he had about 250 GB of important data which I could temporarly take on mine, w transfered every thing using a 16GB flash memory and an old 40 GB hard-disk, and he recovered his laptop and every thing was good then we started to roll back and retransfer the files to his laptop.

Here came the problem, the images was transferred to the hard-disk, and then when we connected the hard-disk to his laptop, we were surprised that the hard-disk is empty, totally empty !

So, I tried EaseUS data recovery, Data recovery wizard, recuva, 7 data recovery suit, -and another program i don't remember- on both my laptop and the hard-disk but they get me every thing except these images !

Please help me these images are very important to my uncle and he can't get any another copy of them, any advice is acceptable and thank you for any help :)

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Yonatan241 year ago

I'm on mobile so I can't send a link but there is a good video on how to restore the data on the YouTube channel "DIY Perks"

iceng1 year ago

What do you mean by "Recover a Laptop" was it a [1]_Defragment of his drive or a [2]_Reload the the operating system ??

If you still have that original hard drive, take it to a data recovery individual that is recommended by a computer store as who they use when a virus does damage.

Do not try to do any more recovery damage on your own.

.

Years ago I have had a drive that died on me and very gratefully paid $250 to have a recovery specialist bring back my unsaved data ( On a data DVD ), when a drive to drive copy replicator I own was UN-able to collect anything out of the old drive.

I think he had a clean room environment to avoid dust particles where he physically removed the internal drive disc and placed it into another working hard drive enclosure.

Hawk-Eagle (author)  iceng1 year ago

"recover a laptop" meant that he used the recovery discs, returining the whole laptop to the default factory state

Regrettably that procedure Re-Formats the entire HD to a point that only a scientist might be able to look for a magnetic ghost image of the old data.

Hawk-Eagle (author)  iceng1 year ago

can you explain more ?

A HD uses a magnetic susceptible spinning flat platter, ie_disk, that has a read write magnetic head that can place or remove a magnetic domain ie_bit any where on this platter's million billion places. The disk processor is a digital device that magnetically ascertains if an analog domain is is above a reference magnetic intensity level or below that level.

When your uncle reloaded the operating system, the disk processor was directed to write all million billion domains to low or high and then to place the binary system information on a specific small portion of the disk.

more to come.

Hawk-Eagle (author)  iceng1 year ago

ِAha, I know this, so if I could restore the data, it'll be restored from the HDD that we used to transfere data or from my laptop's one, the question here could it be done, even if I took it to an expert to get them by opening the HDD itself ?

iceng iceng1 year ago

To continue;

If a specialized amplifier is used to read the analog magnetic domains as numeric values the there may be an ability to reconstruct the previous information of the disk because a write low does not actually zero-out a domain but only pushes it below the reference level with the same energy for each domain.

That means a high gets pushed just below the reference and a low gets pushed near zero. These low analog levels are a ghost image of the previous data and with a lot of effort may be reconstructed by storing the million billion analog numerics to recover the ghost data.

Now you realize the monumental task of recovery may be more then the effort of redrawing lost computer art, though I bet security firms may have software that is able to recover a ghost as well as a directed machine code dis-assembler .

This is also why true erase programs write Hex AA [10101010] then Hex 55 [01010101] to every location several hundred times to completely erase a HarDrive and any prevent someone else from reading a latent Ghost Image !

Hope this brief disk tutorial helps you..

Hawk-Eagle (author)  Hawk-Eagle1 year ago

including files, partition, windows, drivers, etc ...

Hawk-Eagle (author)  iceng1 year ago

about the hard-disk we used to transfer data with, the problem isn't that it's not working, it's working but empty !

without the data it suppose to be carrying !

So you only verified the drive on the laptop the files came from? Only way to know for sure the files transferred is to connect it to a different computer and check the files. Otherwise you could get a false positive on the data on the drive. Seen this happen a lot on thumb drives and data burned to CDs/DVDs. Computer shows things like it did the transfer/burn but nothing was moved.

rickharris1 year ago

Take reliable and regular backup of anything that you would classify as important and check they are there!.

Having said that there are so many variables here I would suggest taking what you have to a professional who may be able to recover some of the information.

Further operations by yourselves may make things worse.

Hawk-Eagle (author)  rickharris1 year ago

Thank you rickharris, I think that will I do really if I couldn't find any solution by the next days ...

That is neither the way to do a backup, nor to fix one.
1. You need to double check the copied data is complete.
2. You need to make sure it s transfered back in one piece.

The only real solution would have been to clone his hard drive and to restore from there.
I have no way of telling if the files actually made it in one piece onto the backup drive or not.
The most common mistakea newbie makes at this stage is not to copy files at all but to create a shortcut for them - I suspect that is what happened to you and that is why recovery software won't find a thing.

Hawk-Eagle (author)  Downunder35m1 year ago

first of all I know all of this, and trust me I'm not newbie at this .

second I confirm you that the transfer was complete after it took some time due to the biggness of the data, and they were there when i checked this, the hard-disk was empty when i connected it to the destinition computer, where i should take the data from the hard-disk and put on it.