Remove deleted files

[Jack3571]

I encountered such an unexpected phenomenon as deleting files on an external disk because of the installation of windows 10 through the creation of the installer on the external , because of this, very many files were lost, mostly documents and photos.
The external disk is 970gb approximately, it was divided into an unallocated area - 932gb and the one where the Windows installer was ...
They advised Ontrack Easy Recovery, I scan it, but I'm afraid to do something, and then I'll destroy any databases to hell, they also offered PhotoRec, but I do not understand anything with this console thing. How to return files with unplaced areas back and then merge the regions into one to not consume everything?
I do not know where to turn ... help with advice on how and what to do, and yes, the curve, and important files to restore ...
My actions were: 1) I installed Windows on a disk, it was divided and the area with 32GB and the installation program for Windows remained. 2) this installer removed from fear and left an empty area 32GB and unplaced. 3) scanned and no more.
And is it right that I scan this program and will it help?

[zmbd]

Jack3571:

Such recoveries can be very complex and is beyond what we would normally attempt via "remote control"

IMHO: Your best option is to immediately quit using the external drive, the more you use the greater the chance of total loss, and contact a local shop to help you mirror your drive and create a recovery. By mirroring the drive they can attempt multiple methods of recovery restoring from the backup copy if the drive crashes. Yes, this will cost money; however, it's the most assured method to recover your drive.
> Ask the local shop how they will recover your drive - if they don't specifically say that they will first "Mirror", "Make a Backup Copy", "Duplicate the Drive", or something similar - run, don't walk, to the next available shop!

>ALL of the "Freeware" programs I've seen will have difficulty recovering a drive "damaged" from a WinOS installer. The ones that will recover tend to require someone that knows what they are doing with HANDS-ON the PC to successfully recover the drive.

>> If you don't know how to properly merge/manage partitions - STOP!!!! You many permanently lose your data and may make the drive unusable without a low-level reformat.

For Other Readers Lesson to be learned here
Disconnect your external drives before attempting to install any new WindowsOS - The WindowsOS installer for Win7 and newer likes to take ownership of the external drive and reformat it for use for the OS and it's EXTREAMLY difficult to recover from without HANDS-ON help from someone that has experience recovering such drives.

>At First spam I will close this thread<