I cannot create a Secure Zone on my internal slave drive (drive D). All appears to go well, without any error messages, but no Secure Zone is created. I have just received a reply from Acronis Tech Support which simply consists of the suggestion to use a workaround. The workaround is to boot my PC from an Acronis Bootable Media and create the Secure Zone from that. Now, to my mind, the word "workaround" always suggests that there is some problem with the product under question, especially when it concerns a major feature of that product. Before I use this method of creating an invisible partition on my hard drive which, for all I know, may prove not to be removable, I really would like to know the reason why I cannot create a Secure Zone by the normal method. I would be grateful if anyone could explain the reason for this failure.