First of all, I have read a few other threads dealing with a similar issue so I am aware this has been discussed before. However, I want to start a thread specific to my problem. After suffering a devastating problem with Windows, I decided it was time to do a system reinstall. I have done this many times, so it has become somewhat routine for me. I have two hard drives, with the largest being a 200GB HD. I have windows on it's own partition on the smaller of the two drives, with the 200GB drive being my storage drive. Anyway, I wiped clean my system partition and reinstalled windows like I normally do. However, after the system rebooted, it ran chkdsk. Chkdsk wanted to check my storage drive. It began saying something like deleting orphan file #### etc. Then after that, it starting saying Inserting an index entry into index &0 of file 25 over and over and over...just kept going and going. At this point I feared it was destroying my data. So, I turned off the computer to interrupt what it was doing. After that, I continued installing windows and then when finshed, I checked my storage drive. I could still see everything...files and folders. However, some files and some folders could not be accessed, some saying they were corrupt. Some files still do work, indicating to me, that I did not let chkdsk destroy everything. So my questions are, first of all, what the heck does Inserting an index entry into index &0 of file 25 mean? Because I can see and open much of my drive, this tells me one of two things could be happening. Either chkdsk was destroying my data, and I stopped it before it could do more damage, or... ...or by chkdsk saying Inserting an index entry into index &0 of file 25 , it was fixing my files and if I let it finish, my drive will be back to normal. I don't want to let it finish until I know what the heck Inserting an index entry into index &0 of file 25 means. Any help? Will letting chkdsk finish help? Or will it do more damage? Any help would be greatly appreciated! Thanks.