My mum and dad recently got there pc fixed from it running extremely slow I don't know what the computer shop did other then I know he put ram in and my dad asked him to clean it up d-frag ect. But since they have got it back they haven't been able to open any old files and its there business pc it just comes up with can not find program to open with or something like that any one got any ideas sorry its not a very detailed description but I haven't seen it my self its just what I have been told any help on it would be great I have suggested she have a look if the program's are still on the pc any got any other ideas