Reacting to host shutdown

[vad]

1. run Windows 10x64 virtual machine in Windows 10x64 host
2. in host Windows session, start Notepad and type something
3. in host Windows session, initiate shutdown
4. observe the message "these applications prevent shutdown" - showing Notepad
5. press "cancel" thus terminating the shutdown of the host
6. observe what happens to the virtual machine:

• error message "failed to pause the execution of the virtual machine"

Callee RC: RPC_S_SERVER_UNAVAILABLE 0x800706BA (0x800706BA)

• the console of the virtual machine remains connected and showing the desktop, but it's not working anymore

open VirtualBox Manager, and check the status of the virtual machine - it's "aborted"

What was expected: if virtual machine was reacting to the host shutdown, it probably should have either shut down itself, or gracefully terminated; there should be no attempt to pause (which failed); the GUI probably should disappear - rather than stayed on the screen while being non-operational.

[vad]

Also: when now-aborted virtual machine is still on the screen, the attempt to close the window results in another error message "failed to pause execution", so it's impossible to close the window.