Found this while looking at Internet Security comparisons and kept seeing Bitdefender frequently at the top, came across this looking for a coupon. This one is from their own website too.
On the page from the link:
-Enter your email address.
-Click "I'm not a robot".
-You'll receive an email with an install link and the option to create an account or log-in.
The email you'll get will say it's the 2018 version for some reason which is incorrect; it's definitely 2019
It's great so far, not bloaty and really customisable with the UI and such. License is for up to 5 devices.
This is my first share so much love to OzBargain <3
Have a bloody good one mates.
MSE or whatever the built in system is should be sufficient for most users. If you want a highly configurable firewall, try Tinywall (which is just a lightweight GUI for the advanced features of Windows Firewall).
edit: Not associated. Unintentional.