Has anyone found that BitDefender stops the Mac from shutting down on macOS Sierra?
I did the upgrade to Sierra a couple of weeks ago, and also at the same time subscribed to BitDefender. However, now I'm finding that the Mac doesn't always shut down - it sometimes sits with a blank dark screen (but you can see that it's slightly lit, so I know that it hasn't shut down) or with the mouse pointer busy spinner continually spinning. I have a feeling it's BitDefender that is contributing to this, because one time the BitDefender "Mac is safe" window was displayed while the shutdown process was frozen. I had to switch the Mac off by holding down the OFF button.