can not boot again VM with tails

[Gottfried <gottfried@posteo.de>]

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Hi Chris,

I was so glad that with your and other Guixers help I was able to set up 
my VM
but when I installed Tails on it, from an iso. in my Download folder
I used it for one session.
Then I closed my VM,
and now I can't start Tails any more.
I installed tails in my VM 3 times and always the same problems.

It says:

Booting from Hard Disk...
Boot failed: not a bootable disk
No bootable device.
See Attachment

So how do you do it?
After using your VM, how do you finish up,close the VM?

Gottfried

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