I accidently uninstalled WD Ez bios from my hard drive, now I can't load windows because it says OS error. Then I put a new 80gig hard drive, and connected 30gig as a slave, and its not showing up in my computer, but I still can find it in Device Manager, so its connected properly. I really would like to save the data, but it seems like only way to install this hard drive and make windows recognize it is by using WD installation disk that would format everything. I also tried to copy everything from this 30gig hard drive to another with WD utility, and it doesn't let me do it because this 30gig hard drive is not NTFS or FAT32 partition, which is strange.