I just wondered why the large MB increase after avast install. The download size is 23.1MB after install looking at the add/remove, it’s 69.67MB. Does anyone know where the large increase come from? Did I do something wrong in the install? Thanks.
Because it is a compressed installation file, mine is considerably larger at 91MB.
As you use avast the VRDB creates a database to help repair infected files, this in itself can be 10s of MBs, mine is 16.7 MB. So there will be differences like this that in a working copy of avast (which will be included in the add remove stats), as opposed to an installation file.
There is nothing to worry about,this will be the same for many other applications especially security based applications.
Skins (if you download new ones), logs, reports, crash dumps…
Something you can get rid, other are necessary.