I think Qubes OS (https://en.wikipedia.org/wiki/Qubes_OS https://en.wikipedia.org/wiki/Qubes_OS) does something similar to what you're looking for. You can set

I think Qubes OS (https://en.wikipedia.org/wiki/Qubes_OS https://en.wikipedia.org/wiki/Qubes_OS) does something similar to what you're looking for. You can set it up so when you login your "qube" (The virtual machine you're currently using) is a normal looking operating system that doesn't have access to any of your protected files. You can then load up your protected files and programs by starting another password protected "qube", which is similar to starting another VM.