Only if in that custom scan you selec memory as one of the scan opthins, on its own a custom scan doesn’t scan memory.

Personally I have no idea why you do a custom scan ?
But The ore-defined Quick and Full System scans are more than adequate, unless your reason for doing a custom scan is worthy (but that is a decision you make not me).

  • With a resident on-access antivirus like avast, the need for frequent on-demand scans is much depreciated. For the most part the on-demand scan is going to be scanning files that would be otherwise be dormant or inert. If they were active files then the on-access file system shield would be scanning them before being created, modified, opened or executed.

I have avast set to do a scheduled weekly Quick scan, set at a time and day that I know the computer will be on. If for some reason my system wasn’t on, no big deal I will catch up on the next scheduled scan.

Personally I wouldn’t give adaware hard disk space, but this has nothing to do with this issue, it is no longer in the top rank of anti-spy/malware applications. Since you have MBAM also it kind of makes adaware redundant. As I mentioned above I tend to run the quick scan weekly and the same for MBAM if you have the free version which is an on-demand only scanner. I have the MBAM Pro version which has resident scanner so I may well miss the odd weekly scan on that.