It looks like there is a scheduled scan that is happening and I want to modify it. Twice today, my pc ran a scan and then shut down. I checked what I have scheduled. The scan that shut down my pc wasn't one that I scheduled. I schedule mine for after midnight. The two times it ran and shut down were at 11 a.m. and 10 p.m. Both times I was in the middle of something, and did not see that the scan had started. The report screen popped up and I went to close it and that's when Avast shut down the pc. Is this normal? I'd like just use the scans I set up.