there is a option for it i found it inside the manul boot-scan how to get it to work by the step:
1.) click-on the “ball A” lookup “start avast! Antivirus” click-on it.
2.) it start-up scan mem then after the main body come up, now click-on the “Manul button” lookup “schedule boot time scan” now see a new windows popup with option in it.
3.) at bottom see “Schedule” click-on it.
4.) click “Yes or No” Click-on “Yes”
5.) your finsh it will now reboot the system and do the scan as it bootup.

Its already in it, i did not see any information for it? so i gone looking around and found it.

boy do i feel like a dummie for not looking around, was trying to find a asker easy to get it to work.