There are many cases when we must have accidentally deleted some important files. Though the OS deletes the files, internally the OS just deletes the pointer to the file. So there are chances that you can recover the files. There are many tools to do that work but they are costly. Recently I found a freeware utility to recover your files. Recuva is a free windows utility to restore your deleted files. So with the help of Recuva you can also recover the files deleted from your Recycle bin.
I downloaded the software and tried to recover some of the Images that I accidentally deleted from my Mobile. I was able to recover almost 70% of the files. With the help of Recuva you can also get back your files which are deleted by System crashes, Viruses and Bugs.