Hi, my recent AV research to fit my requirements, for my home-built desktop, which is rather large in capacity, handling NVME SSDs and standard SSDs, 4 internal, 8 external storage totalling 30 terabytes, no server included, this system included 2 x Nvidia GPUs, a liquid-cooled system and 32GB RAM, this entails a fair decent Anti-Virus, two choices, AVAST premium, or TOTALAV, after an arduous research period, my change from AVAST is to TOTALAV, lots of options for your devices, limits, this was my choice, mainly after going to peoples premises and finding the reason for thier systems slowness was "Norton" now Avast is part on Norton, and asvast has changed with very annoying adds or updates, hence my move, and TOTALAV has won lots of awards for security, so you have 30 days to try it out if not get a refund, TOTALAV, PRICES START AT £19.99, with lots of options but keep looking down your browser for the best option, hope this helps