I have been using First Defense ISR (320.202) for many years with out problems with windows xp sp3. I recently installed some printer software and had problems so I decided to boot to my backup snap shot and when the computer booted I received the error from First Defense ISR of file system error IAT-02 and then the computer booted back to my normal system. I tried again with the same results and then decided to use ghost 15 to restore my computer to a ghost snap shot from 20 days ago which it did successfully. I then booted in to the restored system and then told First Defense ISR to update the backup snap shot following which I tried to boot into the updated snapshot with the same error I mentioned above. I then ran checkdisk to check and fix any problems. It did not report any problems. I then had First Defense remove the snap shot. So what do I do? The First defense ISR version 320.202 is still working on my system and I still have my license.rtf file. Will simply making a new snap shot fix the problem? I would remove and reinstall the program but I can't seem to find the version 320.202 exe. I only find the fdisrfw.exe version 1.05 dated 12-12-2005 from Raxco. I also find a FDISRW_update.msp file in my download folder from 5-17-2007. I Also have KIS 2009 internet security installed but I think I have booted in to snap shots in the past without any problems with KIS installed. Any help is greatly appreciated.