I'm on a HP 280-G MT (mini-tower) PC, OS is Windows 10 Professional -- Norton product is Norton 360 with Lifelock, Select version (subscription started about Jan 26).
ISSUE -- I'm new to Norton. Just learning. Found the Norton tutorial videos, thought, "NEAT". Selected the video on cloud (or local) backups. Short, fairly informative. Not bad. When it was done, I clicked the [X] in upper-right corner to close it. It closed...but the video's audio kept running through it, over and over. I had to leave the tutorial site to make it stop (or just turn off my speakers). REALLY DUMB! It would be nice of you to fix this, but it isn't a show-stopper, just an annoyance.
No error messages.
To reproduce, just select one of the Norton tutorials.