I'm posting this here because it seems to have gotten lost in another thread. As the title says, I can't mount the C: drive on the OS X desktop. If I try to open the VM file with Parallels Mounter, I get this message which says: Looking at permissions in the Terminal shows: I can see the C: drive in a Finder window, and can copy items to it. It seems the problem is only when mounting it on the desktop. OS X 10.9.5, Parallels 10.0.2 (27712).