Error 3048, 3

Having run live-update on one of my PC's (Windows 7 64, NIS 2012) I was asked to restart to complete the update. I set it rebooting and went off for an hour, only to come back to find the following error on the screen.

 

Norton Internet Security
19.9.0.9
Error: 3048, 3
Windows 7 Home Premium

Norton Autofix Results: 0 item(s)

 

I attempted to investigate but the only glimmer of explanation I've been able to find is that it is potentially to do with live-update being blocked by a virus?

 

In either case I tried live-update and it worked as normal. I then ran Norton Power Eraser (which actually worked rather than getting stuck in an endless loop of 'restored the internet connection'), and it found nothing.

 

I was intending to remove/reinstall NIS on one PC already, should I just do so on this one too, leave it alone since this one time is the only occurence of this error, and Norton seems to be working, or format (which would be a bit extreme given NPE says there is nothing there...)

 

Thanks for any help you can provide.