Ive had this problem for months, I uninstalled Avast Driver Updater to make sure thats not it and disabled any automatic updates, scans etc that i could find in the Avast Premium Security settings, but still I randomly get an "Avast Service" process using 50% Disk (aka 100% of the HDD and 0% of the SSD) for about 10 minutes straight, completely ASDing any other program I am trying to use at the time, I think it mostly happens at 1:30 am but it might have happened at other times before I started paying attention to it.
So my guess is avast is trying to do a "sneaky" update even though I have put all updates on manual, but it isnt being sneaky at all so how the ASD can I disable it?
THanks...