If you do have to reload windows, use diskdigger to scan the hard drive after and it will show what is left on the drive from before you reformated it. You'll lose the stuff on the sectors that windows got reloaded on. My laptop went down a few months ago and I was able to recover 90% of my files(pics, documents, etc) It is also good to see what you thought you deleted and still resides on the drive.
http://download.cnet.com/DiskDigger/3000-2248_4-10908894.html
GL
http://download.cnet.com/DiskDigger/3000-2248_4-10908894.html
GL