I have been getting this problem with almost all of my disk images. I mount them, the program begins to install, it gets to a certain percentage and i get a message saying the installation could not be completed because "The device is not ready"
Nothing has really been changed in terms of system configuration, no hardware added or removed. I've tried uninstalling Daemon tools and reinstalling it twice now and I'm still getting the same error.
I'm running windows 7 with v4.35 of Dtools lite