Thank you!
I'd actually gotten approx. 5 hours (maybe closer to 4...) and now that I've been going for about 3, I'm ready for the "good luck" which comes from a steaming hot cup of coffee!
This is the first configuration entry I've made in a very..very long time! The sands from the hourglass of my Emsisoft I.S. subscription finally ran out so striving to be a frugal MalwareTips member, I chose to reactivate Windows Defender & Windows Firewall (Defender seemed much quicker, although "Full Scan" still lived up to being quite "full" in a time wise sense) and I'd switched VoodooShield from "Smart" to "Always On" whilst also spending more time in Shadow Defender's "Shadow Mode"! Paranoia also has it's benefits!
Uninstalled: Emsisoft I.S. (it proved a very good run!)
..and decided to try a security suite with an equally high reputation. Installed: Kaspersky Internet Security
Day (2) and I like it! I've not noticed any of the heaviness mentioned by some over the years.
Thank you @Exterminator for setting great examples I'd begun to glean from years ago which are still consistently accurate today!