How do I get Identity Safe to stay open forever?

I want to have Identity Safe (Vault) stay open forever.  I have been using it for years on Windows 7 and it has remained open so long I almost forgot my password. I recently started moving to Windows 10 on a second partition (dual boot) and of course installed Norton Security. Now every time I restart/reboot the Vault comes up closed.  I seem to vaguely remember setting a switch to keep the Vault open many years ago but can't seem to find it now.  Can anyone clue me in how to achieve this?