Is AVG configured to detect PUP files? If not, how do I add that? Was recently infected with Vosteran/Better Brain (did not execute) but did not show up in scans. Discovered it when I ran Malwarebytes. Run AVG nightly

David, as you have found, AVG isn't nearly as effective against PUPs as Malwarebytes. You can make it somewhat more effective by selecting "Report enhanced set of potentially unwanted programs" for both Whole Computer Scan and Computer Protection.
AVG MegaGuru

David Miller quote "I do NOT use the AVG firewall. See next question"…
Question & Answer (https://support.avg.com/answers?id=906b0000000D2idAAC).
AVG Guru

Is AVG configured to detect PUP files? If not, what do I do to add those files to my scans? I recently discovered Vosteran/Better Brain files (700+ of them)  on my system but it had not executed (maybe because I  use Sandboxie, no idea really). These files turned up in a Malwarebytes scan which I run periodically. (The files are gone now.) I run AVG nightly and there was no mention of these files being on my computer. I do NOT use the AVG firewall. See next question.

David, as you have found, AVG isn't nearly as effective against PUPs as Malwarebytes. You can make it somewhat more effective by selecting "Report enhanced set of potentially unwanted programs" for both Whole Computer Scan and Computer Protection.
AVG MegaGuru