Need advice on using 360 for backup

I'm a dummy when it comes to backing up.  I just copy/clone my C drive ssd to another ssd pretty much once a week.  I just picked up another ssd and used 360 last night to back it up.  All seemed to go well.  I now have a new ssd with a folder named 'Norton 360 backup'. 

What happens if the OS (Win10) won't boot?  This has happened to me many times over the years, the reason I keep a spare copy handy.  The 'Norton 360 copy' file sure doesn't look like it will boot in case I crash the C drive.  I assume I need a bootable disk.  What's the procedure?  Is there a way to get that on the new drive?

In the setup, under 'When', I chose 'Automatic'.  How often does this then update?  It would be nice that this would update at least once a day.

Thanks.