My son, when playing his online games, hit a snag.......was given the option to "F10" and did it. Since then my system has been totally messed up. I keep getting at ATD.DLL error, my defrag wont work, all the setting and fonts are changed........numerous problems. I tried using the recovery disks that I made when I got the system, but they won't read. I have a hard time getting on line, my motorola phone stuff won't work to download pics off my phone, my google earth won't work...................any help would be appreciated.