Is it popping up just after you start windows?
Click Start > Type msconfig > Hit Enter > Click Services tab > Check Hide all microsoft services > Click Disable all > Check the antivirus software > Go to startup click disable all > Check the antivirus software here also > Click Apply > Click Ok.
Restart the computer and see if the same happening. If not, try enabling one program at a time to see if that fix the issue.
Let me know, how it goes. If that does not works, ask me for further help. Thanks.