1. Why avast Internet Security 2016 didn't allowed KProcessHacker driver to run?
KProcessHacker part of ProcessHacker driver, made by wj (wj32.org) and its opensource.
2. I don't know i should put this in bug report or not.
Sometime avast Internet Security 2016.11.1.2253 hang WinRAR process. It happen when i try to compress many file with many WinRAR instance.
My WinRAR version is 5.31 x64.
My OS is win 7 x64 with current update (Feb 2016), except GW10 KB update, of course. And I disable all telemetry except some wicked telemetry service (dps and others).
Oh... another thing, i disabled hardened mode, deep screen, program behaviour notify, etc, in another word i only enable some "normal" setting according to me.