Avast Free, currently 17.5.2302 after install from offline installer (but was similar before, most likely stuck at a version that was up to date on 20.06).
64 bit Windows 10 Pro, updated today to creators update (though it wasn't working before that as well)
I have Malwarebytes installed though not running constantly, CCleaner as well.
I used avast for the last 3 years on this machine, and longer on other ones, not sure why that's relevant.