Browser features missing, NIS setting changed

Hello, I am not very tech-savy so I hope these questions are not too embarassing.

 When I open my browser, the normally green "https" indicator for secure sites is no longer green (banking, job-serch sites, etc...) Is this because of a Norton program acting as a buffer? Not even my PayPal log-on page shows green...very disheartening.

 

Also, I use the "Boot time Protection" feature in settings, but every time I restart my computer, it is switched to the off position when I re-open Settings.

I am running Windows 7 and use IE10 and Firefox as browsers. Any suggestions?

Thanks.