yesterday i was on the phone with canon tech for 4 hours trying to get the my photo printer CP720 driver to install. and was using a vista driver. but we couldn't get the computer to find or recognize the driver. we tried every thing he could think of. but the PC wouldn't recognize it. then he told me to do a sfc scannow scan. and it went up to 99% then said it had some corrupt files. but could not fix. is there a way to find and fix these files with out losing all my other stuff i have on my PC? thanks for any help. on this. [IMG]http://i8.tinypic.com/4pwxh6q.jpg[/IMG]