**Please keep in mind...there is NO BACKUP!** I was installing a software update on my mother's Intel iMac. While installing, the iMac told me that there was a problem and to contact the software manufacturer. When I went to reboot, it would not. All I get is the universal sign for stop (circle with a 45 degree angle line through it). My mother has no backups whatsoever. She needs her information. I am in need of a safe way to retrieve her information. I have tried the basic help from Apple's site--nothing worked. A friend told me that I might be able to boot the computer from a bootable external hard drive and pull the information off that way. I have access to two mac laptops and multiple external hard drives. If I can't even boot the iMac, can I make a bootable drive off of one of the mac laptops and then use it to the iMac? If so, how do I make the bootable drive? Another possibility is to buy a new HD for the iMac and then pull the information off of the old one, but I'd like to try the bootable external hard drive first, if possible. THANK YOU!!!