Andy Burns wrote:
Char Jackson wrote:

Unless they've completely perverted the network stack in Win 10, which I
don't believe is the case, you can simply remove the default gateway from
your network settings, which will enable your Win 10 to remain on your
local
LAN while preventing any off-LAN traffic, in or out. To me, that's a lot
easier than pulling the cable and/or reverting to sneakernet.

I don't know how the P2P windows update works, it might need to discover
the updates direct from the Microsoft, and use any local peers as a
download source, or it might discover updates fro local peers too...

Windows Update uses some sort of manifest file. The same file
that WSUSOffline uses, to build a download list for Windows Updates.
If a local computer had that file, the update could be totally
local. As if it was a corporate IT WSUS server or something.
But that doesn't strike me, as the way Microsoft runs it.
I would still expect centralized logins for the manifest,
with the "local copy" trick only being used to reduce
bulk download traffic.

Paul