system
1
Hi, I am new to Avast. my question is:
1.) Should I scedule a Boot scan for every time I start up?
2.) If not how often should I scedule a boot scan?
Thank you
XMAS
2
Hello and Welcome 
No 
Well, you must schedule a boot-time scan only when you have a virus in your operating memory and avast! cannot proceed it while Windows is running (Windows protects running processes). 
DavidR
3
- No, that would greatly slow your boot and avast does scan certain files on boot anyway.
- It is designed for dealing with malware that is difficult to remove under normal circumstances, e.g. in special folders or in use, etc. so a scan before windows boots usually overcomes these problems.
Routine scanning can be achieved by using the on-demand scans.