Everybody knows you should make a good backup, but how many people actually do it? An old colleague of mine wanted to reinstall Windows on his computer and thought his family photos to be safe on the system’s second hard drive. However, during the reinstall (which included formatting) there was a mix-up of the IDE and SATA drive and their partitions. When he rebooted his computer the photos were gone, replaced by a clean partition containing only the Windows OS.