D:/ Not Accesible? Wheres The Label?

Greetings Everyone. Well, my d: is broken, when i click on it, it says “D:/ Not Accesible, Please Retry”. I know what to do to fix it (go to properties and make Label say “D:/”) Yet when i try to enter the label, it wont show anything. I can type and type but nothing happens. Please, Somebody Help!