I have activated my license and is using it since the past 9 months. I have always been with Kaspersky since the past 4 years and it works well with my operating system. You just need to have the database up to date for a good protection against any online threats.
Avast for the win, I always wanted to try our Kaspersky but I downloaded Avast and then fell in love. I did however have it on my phone for a while, worked pretty well but like other antiviruses it killed the battery life. ._.
I've used Kaspersky exclusively for the past 6 years. I've had no problems so far with it and it's kept all of my machines alive to date. Definitely the best internet security suite i've ever used. I refuse to use anything else but Kaspersky for my anti virus and such. 🙂
With all the Antivirus that's mentioned, I've used them before but since I got Malwarebytes I never needed anything else + it's a huge load off the system even though it auto-scans files and websites you visit for malware. I still use Kaspersky's free scanner every end of the month just to make sure but my PC's clean.