My girlfriend dropped her computer, and now when it goes to boot it says "Disk Read Error, Press ctrl alt del to restart." I googled the error and came on a couple of threads in this forum. The only solid advice was to reinstall windows 7 to get it to boot at all. If I reinstall, am I going to lose all the data on the hard drive? She is a photographer, and MUST have the photos and contracts saved on her hard drive.