Data recover for Reformatted drive

I'm looking for a good data recovery software. I've mistakenly reformatted a 1 TB drive. I've tried the well known photorec freeware (Data carving kind), found some but lots of garbage with videos smaller than they should be etc...
The problem being that i've copied about 30 Gigs of new data before realising.

Isn't there a mean to unformart somehow ?
It's a Nfts partition (actually 2 partitions now)

Thanks for your inputs

Low chance if you not defregmented your drive (this is case where defragmenting drive help a lot).

I always respect software quality from diskinternals so you can give a chance https://www.diskinternals.com/ntfs-recovery/

For these kind of situations i always use the Getdataback recovery software and do a full/deep scan of the drive to find the lost data.
With a NTFS filesystem the change of recovering files/folders is pretty high.
Of course data in the overwritten part of the disk is forever lost/unrecoverable.
Not freeware but you can preview/open files to see if the recovery is possible/successful.

With tesdisk i never had much luck if you partitioned/formatted the drive yourself.

Originally Posted by themaster1

I'm looking for a good data recovery software. I've mistakenly reformatted a 1 TB drive. I've tried the well known photorec freeware (Data carving kind), found some but lots of garbage with videos smaller than they should be etc...
The problem being that i've copied about 30 Gigs of new data before realising.

Isn't there a mean to unformart somehow ?
It's a Nfts partition (actually 2 partitions now)

Thanks for your inputs

https://www.diskinternals.com/ntfs-recovery/

You can try this but I don't know how successful you will be.

A lot will depend if you used the same cluster size when you reformatted the drive as it had originally, if automatic defrag was enabled on the drive, did you do a full format or a quick format, etc.

The problem is that when you reformated the drive you told Windows that the entire drive was available for use and when you started writing data to the drive you overwrote at least 30gb of data.

I think you will be disappointment.

Does anyone understand how the "custom signatures" work with Testdisk (Photorec) ? I'm hunting for avi but without much success (none found), i know other softwares find some, i must be doing something wrong.
I don't get where you put it that sig file precisely and the format must be ascii aswell, confused (should i use dos/ibm-ascii) in HXD instead of Windows Ansi (default) ?)
Also when i inspect different avi (recorded the same way, same codec etc..) with HXD (hex editor) the first bytes are not the same like
video1 = RIFFøõâAVI LIST video2= RIFFøuãAVI LIST
On the second byte though it's always the same like video 1 = Øþhdrlavih8


There is one tuto here: https://www.cgsecurity.org/testdisk_doc/photorec_custom_signature.html

themaster1...start a new post. Your question does not seem related to data recovery.

It very much is related to data recovery: using an option of testdisk (custom signatures of video files, in my case AVI's)