I hear that Recuva is good, but not good at handling formatted files. I find this article talking more FREE file recovery for Window - Top 10 Free Windows File Recovery Tools
Hope it's helpful to you.
Moreover, if freeware won't help, you can turn to some professional format recovery programs. One of a not bad one is Wondershare Data Recovery
- Format Recovery
. The trial version is free to allow you scan the hard disk. After the formatted files are found, you need pay 39 usd to buy the full version. Good luck.