When I go to disk clean up and go to D drive, the only option is an empty recycle bin. All the other files to be cleaned cannot be seen. My D disk space is shrinking and didn't add anything. (Vista - don't know the version but it was new in 2007) Tried a disk clean up where you go to command prompt and type in commands, that kept coming up "access denied" Does anyone know how I can fix this? Also, why is the space shrinking? Once before this happened and I somehow located the back up files and deleted them (I know NOTHing about computers and not sure how I did this). This helped, but the then the D drive is full again. Back up is turned off I believe.