How to isolate two different operating systems on one PC?

Question

Operating Systems

How can we put Windows OS and Linux OS on one PC so that the user does not have access to files of another OS when logging into any of the above OS?
Thanks in advance for any help

Answer 1

On Linux, an unprivileged user is not allowed to mount filesystems.
A little more confusing, you can write a udev rule that will not create a device in /dev/.
With Windows, it's easier - it simply can't do anything except Windows. to access ext* file systems, you need to install a special driver. If it is not there, Windows will not read anything. File systems btrfs xfs and others like them do not have drivers for wine at all.
It all depends on which user should hide sections from "home hamster" or "technically educated".

Answer 2

two virtual machines

Answer 3

1. Encrypt disks
2. Do not grant rights
3. Install in virtual machines

Answer 4

As an option https://ru.wikipedia.org/wiki/%D0%A1%D1%80%D0%B0%D...
Or adjust file access rights in these OS

Answer 5

How to isolate two different operating systems on one PC?

Put cancer and change discs physically. I have several SSDs with different operating systems for my second computer. Also, when switching to a new OS, I do cloning of the system disk. For the main computer, there are both Windows XP and Windows 7 (of course, for frequent use I also use virtual machines - copies of physical ones).