The process of hard drive data recovery from overwriting will depend on the level of overwriting of the data. Should the data in a deleted file partially be overwritten, there is the chance of being able to recover some form of information. In the case where the data was completely overwritten, there is no way of being able to recover it through normal recovery methods. Stop using the hard drive and refrain from saving any more data into it. There is a data recovery tool known as Notchox which can scan for any data in supported drives.