How to recover overwritten NTFS partition?

SOLUTION: None of suggested solutions worked for my case. I partly solved my problem with RecuperaBit. RecuperaBit could recover a lot of small files, including important ones. But it failed to recover big (bigger than 1 GB) files.

In my opinion, only RecuperaBit solution should be advised such (beginning of NTFS volume overwritten) cases.

Thanks to everyone answered and tried to find a solution for me.

On linux you can recover all the files in the not overwritten part with https://help.ubuntu.com/community/DataRecovery/NtfsUndelete

There are also similar tools for windows.

Very important is, that you do not write anymore to the disk, also restore the files to another disk. Otherwise you limit your chances of success.