Help me to recover my precious data...Please

[pulkit3]

I recently Installed Ubuntu on my windows 7 Laptop and used the replace option during installation.
Now all my partitions are gone and there is a single drive of 320GB. All data is gone too.
I referred following thread but I an not sure about the solution to the problem given there http://ubuntuforums.org/showthread.php?t=1879640


How to recover all the data back.
Is there any free method?

Someone please help me.
I need that data desperately.

Someone please give me the contact information of rohyt in the above link.

[tgalati4]

Welcome to the forums. That is unfortunate. "Replace" means delete all data on the disk and install Ubuntu.

Proceed carefully. There is a chance of recovery as long as you don't make the situation worse. Get yourself an external USB drive of 500 GB or greater to receive the data.

Some reading: https://help.ubuntu.com/community/DataRecovery

Do this from another computer or in a Live Session. Boot your computer with a LiveUSB stick and open a terminal:


sudo apt-get install testdisk
testdisk

Don't reboot, because you are running in RAM and you will have to reinstall testdisk if you do.

[QIII]

There is some hope, but only some.

To improve your chances, turn the machine of and use a different machine to wait for help.

The more you use that machine, the less likely a positive outcome. Using the machine will write over more and more of your data.