I noticed that the options to schedule any scans is gone unless I make a custom scan. Is this intended or a UI bug? Previous versions would show the options to schedule the full virus scan next to the Priority field, but now it’s gone. ???
I’m on program version 19.2.2364 (build 19.2.4186.431)
See screenshot here: https://jmp.sh/2EMArcN
This is a known (as far as I’m aware) Avast UI bug. When it might be squashed, I don’t know.
In the meantime, you can create a Custom Scan, the Custom Scan starts of with all of the setting of the full virus scan. You should be able to make customisations to the settings (including any you might not have in your existing full scan), including setting the schedule for the scan.
This may help,
https://youtu.be/FopwEgSd4c4
I’m having a similar problem: I had previously scheduled a full virus scan, and can no longer find any option to update that schedule. I can create a custom scan, but that seems to run in addition. So just to confirm: (a) the disappearance of the option to schedule a non-custom, full virus scan, is a bug; (b) the bug has been reported to Avast; and (c) at some time, which none of us know, it will be fixed.
I have exactly the same issue as this chap.
Yep, best way to fix old/new scan issue is to completely remove Avast and then install Avast as a clean install. You get to start fresh again.
What you are seeing are old settings being carried over to the new program with no way to stop or delete the old settings when the new GUI has somehow lost the original settings; this will happen only when an upgrade to avast is done.
A clean install cannot have these issues.
Cool, I’ll try that out, thanks! I did make a scheduled Custom scan, but wasn’t sure if it would still run the Full scan + the Custom scan.
The default Custom scan is the same as a Full Scan.
So unfortunately, a clean install did not make the missing Schedule field show up 
Also - Today my Full Scan ran after my Custom Scan. That is what I was afraid of. How do I stop the Full Scan from running automatically and only use Custom Scan? If I can do that, I’ll ignore the UI bug.
Personally I feel on-demand scans are much depreciated with an on-access antivirus. For the most part they are only going to be scanning those files that are otherwise dormant or archive files, etc. If they were active then before they are run, modified, etc. then the on-access shields scan them.
On-demand scans don’t do as comprehensive a job as the on-demand scan that is also doing a behaviour shield check, reputation services, CyberCapture and Hardened Mode as these are on-access services.
That said - the lack of scheduling options I believe is a bug yet to be squashed by avast. Why not leave things as they are and change the Custom Scan to scan a very minimal selection (see attachment for example), so it doesn’t take long and your Full Scan will run.
No, it’s not a bug. Avast have intentionally changed this behaviour and I don’t know their logic behind it.
The only way to schedule a full scan is via a new custom scan. The full scan is pre-configured in custom scans so it is really one extra click to enabling scheduling.
For me there is zero logic if this is intentional. There is zero impact on Avast it isn’t on their servers, it isn’t using their power or resources.
Then they need to fix the balls up that having forced the user to create a custom scan other previously created scheduled scans run after the custom scheduled scan when previously it wouldn’t run. This totally defies logic.
Your operating system changes, your browser changes, the utilities you use change.
You AV also changes. Time to learn the new settings. Probably once we get used to the new changes,
they may just change again. Nothing remains the same.
Even shopping in a supermarket is an adventure because they constantly change where the merchandise is stored.
Oh, I fully understand that. I’m a user experience/digital product designer for a living. I don’t have anything wrong with change; in fact, I enjoy it sometimes. But from a UX standpoint, this is a stupid design decision. Now I will be having two scans scheduled if I want to control a custom one, the other of which I cannot control (the Full Scan). For now, I just changed the priority of my Full Scan to low, so it doesn’t run in the evening when I’m trying to chill and play some video games on my PC. Not gonna bother scheduling a custom scan, since it’ll get the same job done.
A simple question? Once you know your computer is secure, why are all these scans needed ??? Your AV scans anything new, changed or in other ways accessed.
I was wondering if it did that! If it does, that makes me feel better. I don’t pay attention to how long it takes.
I personally run a Boot-Time Scan once a year or so. (If I remember) 