Sorry, but i have to say that the Windows Explorer or Multicommander or any other Commander are not the right Software for doing such a job. They all will need to much time. Therefore i never finshed such a job with MC. I made it always partially until the first question come or until it stop for several reasons and finished it with BC, The fastest Software is Acronis True Image. This use the Full Speed of the Hard Drive for making a Backup. There is no faster Software available and therefore Acronis can give us always alpha versions as final.....