I use Windows XP pro. An error message tells me that "Windows Delayed Write Failed unable to save all data for F:\$Mft. Data lost, cannot be saved, error may be caused by hardware failure or network connection. Try to save elsewhere." As far as I can tell nothing has happened to the computer. I have accessed and viewed all my files and photos. My son and I are networked but he has had no problem with his computer. I use external hard drive, Maxtor, about which I need some help, but for now I backup the files every month or so. No problem with using that two days ago. You folks are so knowledgeable that this might be too trivial to take your time, but I sure hope someone will explain this latest computer error message. Thank you. Fred Frederick, Sr.