I have this IBM deskstar drive and it has worked fine for 2-3 years. Recently I was attempting to reinstall windowsXP on the system, and I could not get through the format phase of install. I then took the drive and put it on another system and while it would recognize and allow access to the second partition on the drive, it would not allow me to do anything to the C partition. I ran some of the disk checking utilities that windows has and they all came back clean. I did however notice a repeated, click and spin noise when attempting to format. Just from what i've read in other threads, it seems like this drive is just done for. The only thing that I'm confused about is why I can still access the D partition.