"Access Vault" message where normally "Vault is closed"

After having my MS Community profile blocked by another Microsoft mess-up and unable to use their forums for 28 hours, I was at  last able to use it again & then signed out at 8.30am.

Just come back and saw this on the Norton Toolbar:

Norton ACCESS VAULT showing on Norton toolbar 2017-03 27th.PNGClicking on it brings up System Restart Needed. Nothing happened when I clicked on that so I restarted the laptop. Same message so I switched off and a few minutes later switched on. Still the same.

I vaguely remember it happening before but I can't find any records on my PC nor via a Search here.

I'd appreciate your help! Thank you.