when i click on a file in my hard drive and try to change it (like its name) it turns into a unusable file. Of if i click on a file to open it also does the same thing without opening it.
hmm well if your trying to change the name of the file you could be deleteing the extensions
open my computer and hit the "tools" drope down menu then go to folder options, click the view tab and it should say "Hide extensions for known file types" make sure its checked cause other wise when you go to rename a file and delete the name thats there you also delete the file extension and the OS doesnt kno what programs to use to open them