Running AIS 2015 on Win 8.1 with all relevant updates and service packs.
Here's the issue: I set Smart Scan to run, went off to make breakfast, came back approx ten minutes later and found that the Quick Scan window had been opened. I clicked back to Smart Scan from the side-bar, and Smart Scan resumed at about 52% completion. Smart Scan then finished and reported no problems.
I haven't had time to do a full scan yet. Is this behaviour by Smart Scan normal? Should I be worried?