Unless you have a backup recovery:
Reinstall windows, Reinstall drivers. During the install process you can use quick NTFS setup and you may be able to save some files. (it will save in a folder called win.old on the c:\ drive.)
You can also use a recovery software for any files that can be recovered. Personally I use Recuva. http://www.piriform.com/recuva
Good luck, and let me know if you have a back up.