I am curious about the feasibility of this idea. Rather than swap between 2 separate PCs, I am wondering if I can dual boot between Win 7 and 10. Some ideal requirements for this would be: 1. It doesn't effect Windows update on the 10 system 2. The hard drive should be formatted for BIOS to allow backups via Windows home server 2011 for both 3. If possible, include a third hard drive partition to act as a file share between the two of them. How realistic is this goal, how difficult would it be, and what tools are necessary to get the job done? Which operating system should I install first? Thanks.