@Nocturnus, back in 2012 or so , I was a big fan of pc tuneup and Avg, but every update saw them get worse, slowing up the pc, moving more and more away from a standard windows interface, using custom utilities with silly flashy interfaces that were increasingly less accessible.
I put up with the inequities in version 2012 since they'd been so successful in previous versions (remember, at that point Avg versions came out a year ahead of the actual year, EG version 2012 actually came out in late 2011, 2013 came out in late 2012 and so on).
Version 2013 slowed my pc so badly it was almost unusable and I needed AVG's own tech support to fix the problem, since that was when they actually had a helpful tech support service.
2014 fixed the slow down problem, but came with an interface so clunky that functions like performing scans on specific parts of the system or even seeing popup notifications were impossible, let alone creating exceptions.
When Malware bites managed to munch a virus AVG couldn't touch, that was pretty much that, since by that point AVG was no longer performing the functions of an antivirus and C Cleaner could do the job of Pc tuneup nicely.
I think at this stage i haven't used aVg since 2014 or so, and as I said, wouldn't touch it with the proverbial length poll.
As to antiviruses in general, I agree with Haily.
As I've said before, viruses are like house fires. So long as you learn some basic safety and remember that if something looks dodgy it probably is, you will be okay %99 of the time, just the same way you can prevent most house fires by not plugging 16 plugs into one power point or leaving your oven or tumble dryer on all night.
It is for that last 1 percent that an antivirus can be helpful, indeed after the AVG fiasco and my laptop utterly crashed in early 2014, I went entirely without an antivirus, and! an windows xp what's more, for a couple of years and was completely fine, though obviously now I'm glad to make use of Windows defender just in case.
With our dreaming and singing, Ceaseless and sorrowless we! The glory about us clinging Of the glorious futures we see,
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)