It’s normal. It includes the logs, the Quarantine, the virus definitions.
You can disable the self defense module and delete all the contents of that folder (logs and dumps).
Think I’ve got it now. Cleaned up some files again and wouldn’t you know it, the MB shown in the Add/Remove Programs are down to 129 MB from earlier today of 181 MB.
So Avast! acts like a yo-yo in the Add/Remove Programs, adding MB over time automatically and deleting MB when one deletes info. Never seen that with any other software yet.
The size will fluctuate as whenever a new VPS (virus definitions) update is done a new folder related to that VPS version number is created, e.g. 1006290 for today, at that point there would still be the previous 1006280 (and possibly 1006281) folders, see image. These are almost identical in size and will remain for a while intil avast does some house keeping removing the older VPS folders.
As far as I understand, I had 2 updates today: 1) 10062900 and 2) 10062901. (yymmddxx) Correct? These are the only 2 showing.
Therefore I surmise that it must have been Avast! that did the cleanup of any previous updates that made such a big difference in MB? Can’t imagine that the 2 (small) files I cleaned up would have been 52 MB.
Yes that is correct two updates today (usual number) and the format is correct yymmddxx with xx being the number of updates in a day 00 - 99 (generally you will only see 00 or 01).
Yes avast does the cleanup automatically as there will be a period of transition where the last and new virus definitions folders will be present. I have just manually updated to 100629-1 so I currently have three folders, which after a while will be pruned by avast. I have no idea what the time frame or trigger is to do the cleanup.