How To Recover Data File From Accidentally Deleted

The following links is related how to recover deleted file and also preventing deleted files from being recovered:

Software Name: Piriform Recuva
Download Source: http://www.piriform.com/recuva/download

Full Advice of Recovery and Wipe Disk
http://www.howtogeek.com/125521/htg-explains-why-deleted-files-can-be-recovered-and-how-you-can-prevent-it/