Recuva will not delete files from the C: Drive... i have an Asus Eee PC (if that helps)

OK.. I have scan deep scan and changed the settings and everything its getting on my nerves, what is happening is it will delete the stuff of E drive which is what it is installed on, it is a Memory card. but when i try to delete the stuff on C: drive it says its deleteing them and then doesnt it just says its deleted no files in 68.0secs . it would be nice if you could help thankyou :(