One of my clients did a little bit of mess & we need to recover the data.
The Server was SBS 2008 & he installed SBS 2011 on it.
He did not specifically format the drive, just deleted the drive & ran the installation on it.
Now, there was some critical data which was lost.
Before installing the new server he made a complete backup (by running Windows Backup) on an external drive.
Once he installed the OS, he used the same drive as Backup drive, on which the Server did the backup.
There is no data on the external drive as the new backup is written on it.
Now, can anyone please advise some tool or way to recover the data?