I recommend the program "Get Data back for NTFS" from http://runtime.org
Before using this, you may want to find what sort of filesystem your operating system is running on. Whether it be FAT/FAT32 or NTFS or something else.
I haven't tried Disk Doctors, though. You may want to try that first.
I second the notion NOT to Download or Create new files as you may overwrite the files you wanted to recover making them... unrecoverable.
Ya sure it is 100% possible to recover your deleted files if the files not overwritten, before using any software you must check your recycle bin , if your files are not their then you can use software which is highly used in these days for file recovery is stellar phoenix file recovery software, you can easily get your files by using it.
Remember only addresses(references) of any file is deleted while data still intact in the HDD.