Sophos would be my AV program of choice, but is very expensive for personal use.
Updating across a network can be set up as fully automated.
For usiness use I believe it is amongst the best
The Licence for Sophos allowed any business user with a legal copy on their work machine to also use it on their own (home ) computer.
Given that a large majority of virus's found on work or business computers are brought in by people bring in their own floppy disks, flash drives etc. This gives complete protection by preventing the virus's being brought into work in the first place.
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