UNFORMAT software Documentation
1.2 Data Recovery Tips
After you discover a formatted or deleted drive or device, it is important that you take steps to protect the data that you want to recover.
DO NOT WRITE ONTO THE DRIVE THAT CONTAINS YOUR DELETED DATA!
When you install software, you write data onto the disk. This can destroy your deleted data. If you have only one logical drive, physically remove the hard drive from the computer and install it as a second logical drive on another computer where data recovery may be possible.