Just a reminder: back up, back up, back up, back up!
Fortunately, if you air-gap your computer, AV is really a non-issue.antivirus software
I've learned that most of IK's stuff won't even start without
But I need internet connection, and worse still - I'm using a NAS drive, so no network, no audio!
Sorry? I have a NAS drive ( V old V slow) and that is on my copper network. I get internet on lappys with Wi Fi but I could just pull the plug out of the back of the router and then, I assume, I would still be networked but no internet?
if you wanted, you could set up a whole internal network that is disconnected from the internet at large.