Hi,
It may be easier to recover the drive using a different computer, or re-installing windows on a new HDD, then using it to try to recover....
The problem is that the drive needs to be readable to recover anything... If the Partition Structure\File Structure is damaged, the disk will not be readable... Even if it is readable, the actual DATA may be damaged..
The fact that Parted Magic can not access\read the disk is not a good sign...
It is possible that if you make multiple attempts with CHKDSK, you might have some luck...
I has a bit of a similar problem a few years ago, and CHKDSK eventually somehow resolved the problem...
Your's is your boot disk though, mine was not... That makes things much more difficult...
There is a program called "RECUVA" that can sometimes recover files, but what it works best for is recovering deleted files and partition that are intact... Your's may not be... Some maybe...