Hi,
My computer was broken and my friend fixed it, but the problem is i need my data back,
this is the story,
I bough a new hard drive,and ask my friend to format and install an OS he did eventually but before, he accidentally installed the OS to the previous (full of data) hard drive and put few softwares inside it. He "accidentally" formated my whoooolleeee document,movie,pictures,music

that ive been collecting.
(before was 2 partition c: and d

all the data ), he formatted it so now it became 1 partition with few software in it)
I tried to recover it with RMF trial, and found few files, but i cannot open it (ex. .avi,.mp3)
my question is quite simple (duuuhhh!!)

can i recover my files? and what are the possibilities.
Thank you sooo much..