I am accustomed to very simple backing up by cloning to a USB drive in Windows 98 with a program called Flipback. I am new to XP and Acronis TI, and see that there are issues with cloning in XP. I also see that people with TI 9 have had problems backing up, and quickly restoring images with external drives. I like the idea of quickly replacing a destroyed hard drive with a clone, without having to have a spare drive on hand to which a image has to be restored. Also replacing a lost or damaged file by a simple copy from the clone would be nice. As I understand it: When my c: drive is cloned to my USB drive (now j, both drives will look like c: drives to XP. If I remove the USB drive before turning my computer off, XP is happy when it next boots up. If later, I connect the USB drive after booting up, to make a new backup clone, or to replace a lost file, are there any problems? Is the USB drive reassigned as j: or does it still look like another c: partition? If the main hard drive fails, I would like to take the USB drive from its case, and physically put it in the failed drive’s place. It seems like that should work fine if the USB drive still looks like c: to XP. If it looks like j: what then? There seem to some savvy people on this forum. I would appreciate some words of wisdom.