i think this will work
first enable show all hidden files ,folders show system files and show extensions of the file option from the view>>folder options
then via explorer navigate to the drive ..
if u find a file named autorun.inf.. open it u will see some file name ..check whether it exists in the root of the drive... if so remove the file..then delete the autorun.inf file..
like this do for all drives..the restart and check whether the problem exists..
post ur reply here..