I would think you'd need to remove ZA Internet Security. Only one AV installed at once, only one firewall at once, leaving other ZA components that may `overlap` with AVG's software would likely lead to problems.
Surface Pro 5 News - release date, UK price, features, specs
Gear VR vs. Daydream: Which delivers the best VR experience?
iPad Pro 12.9 vs Surface Pro 5
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.