I have used Backup and Recovery versions for years, but something is very different with version 15 - Instead of backing up my C:\ drive via compressed archives to my external USB hard drive, it says it will back it up to a "virtual drive container." I don't know what that is, nor do I know if it is a Windows feature (I have windows 8.1) or a Linux feature (to use with the Linux recovery disk). Can someone give me a little guidance here? For example, can I build a VD container on my external USB hard drive with Windows? Thanks for any help!