What hardware/software do I need in order to completely copy a hard drive so that, if my computer's internal HDD dies, I can simply replace the failed drive and easily transfer the contents of the backup drive, including the original OS and all programs to the new HDD? Also, would a replacement hard drive have to be the same brand/model/size as the old one? I ask because I also have Rosetta Stone software and the software can only be installed on 2 HDDs before they make you purchase another complete copy of the expensive software. The simpler the process, the better. TIA.