DavidR
43
If you read about it in this topic, it gives the locations in Reply #16.
That said I rather doubt that you have the same problem as this topic that is over 1 year and 9 months old and shouldn’t be relevant on your win8 installation of avast. The reason I say this is there have been several program updates since then and the streaming updates have been updated in some of these.
You also asked this question again back in July 7 2015 - https://forum.avast.com/index.php?topic=143711.msg1230904#msg1230904 - and the location was given in that also Reply #25.