Nerds and their bloat. God forbid. You got 16 ****ing gigabytes of ram. A few MB is not going to hurt you. Geeze.....
I was surprised my corporation uses AVAST. Part of me thinks a big part of it that it would take too much time and money to validate another software...
I use Avast at work. My all SSD i7 rig takes about 2 full minutes for Avast to scan an NVIDIA driver update before it will run. My exception list is about a mile long because Avast thinks all kinds of common software are suspicious. Quicktime, for instance. Constantly breaks legitimate software due to false positives.
Only reason I put up with the headaches is because it was free through the Avast for Education program.