Hello. Some time ago I had a disk problem - my C was full. You recommended using CCleaner and I did. But after some time when I closed my laptop(when I close it it goes to hibernation) and then turned it on I got an error massage something like fatal error 00000xd, file hiber.fyl sys. My computer can`t go into hibernation and when i close it or choose hibernate after turning it on I get the same error message. I don`t know if the two probs are connected.