Hi!

I did very wrong thing:

I was inserting into other PC new harddisk and one from which I wanted to import data.
I did both at once and PC was running on live DVD... so I entered Disk Management.

Both disks looking no partitioned and unused.
I was prompted to init disk - I meant it's the new one - so did it... and problem was created - it was disk from which I had to import data...

I trashed all data (2TB near full) by simple iniitialization.

Can anybody help me how to undo init or RECOVER data on disk?
Help is in price of GOLD...
Problem is that I'm not rich.

Thank you all for each word, each letter...

MiroPersonally I'd try using TestDisk from here to attempt to recover the partition table: https://www.cgsecurity.org/wiki/TestDisk. The PhotoRec software as part of the same suite is also useful to try to recover individual files if you can't get the partitions BACK. Before you do anything, take a full image backup of the entire drive - It's currently in the best possible state from a recovery perspective and you don't want to end up completely trashing it while attempting to recover data without having a backup. The only experience of this software I have is under Linux however it does claim to support other OSs as well.Ok, Thank you very much!

I disconnect drive until I buy one for diskimage 'cause it's 2TB HDD and I want to AVOID disk image data loss by disabling compression so it will need at least new 2TB HDD.
Then will report.

Thankful,
MiroSo, report:

I used many tools.
Your recommended helped me not.
Now I have all the data back and missing are only two folders, very important folders.
I used Diskinternals Partition Recovery Trial.

Miro