I have 3 disks, C, D and E.
Initially I had Windows 10 installed on disk C, then I formatted and made a clean install of Ubuntu on disk E. When I start my computer I can choose to boot to Ubuntu or Windows.
When I boot to Ubuntu I can see and access C D and E. When I boot to Windows I can only see and access C and D, E that holds Ubuntu is invisible to me (which was visible and accessible before the Ubuntu install).
Showing disk in disk management, can't do anything but delete the volume.: