Internet Security/Anti spam add on

I  have always, at times, received a notice that Norton my anti spam in my att.net email a/c has a serious pbm.  take c/o asap.  so i always enabled it.

Now, that i have Outlook.com i got the same message saying i should disable Norton anti spam.  Should I??  w/windows 10 i now have two sign on's but have been having this happen for a very long time.  Nothing to do with Windows 10 upgrade which has gone rather smoothly and I am satisfied.

Thank you