Welcome, Haleh. I have a number of questions, and some warnings, but first the warnings:
- Do not use your computer if you do not have to, for now. Try to use that belonging to a friend or family, when possible.
- If you have to use your computer, try not to create new files, and do not install and load applications. This may write new information to the hard drive that will overwrite data that seems lost.
And now the questions:
- What Operating System are you running? For example - Windows 7 only, Ubuntu 12.04 LTS only, Macintosh, or perhaps Windows 7 in one partition and Linux in another, dual boot (side by side)?
- How large is the hard drive and how large the partitions?
- I note that you say "second partition that was deleted (because of wrong using testdisk)" - does that mean you have tried TestDisk from http://www.cgsecurity.org/wiki/TestDisk ?
- "After a problem using a software" - what was the software and what were you trying to do?
- Do you have access to writable CDs, DVDs, USB sticks (see images)? You may be best to create a "live, bootable(can start the computer)" one featuring software such as your EaseUS Data Recovery Wizard Professional, etc. This will reduce the risk of "write new information to the hard drive that will overwrite data that seems lost." I referred to above.
That will do for now. If you have already solved this problem, or someone else solved it for you, let us know and we can close the topic.
I understand that English may not be your first language.