Windows 10 update has the ability to download updates from other computers on the same network. This is very helpful to me as I am on a limited and expensive wireless connection. The problem I've encountered is that Windows doesn't always download from machines on the same network, even if those machines have already downloaded the update in question. I've have seen my machines share updates previously, but it isn't consistent.
Is there a way to configure (or hack) windows update so that it will download updates ONLY from computers on the local network and not from the internet? If this was possible, I would configure one machine to download the updates from the internet and the rest to only download from the local network.
I've Googled around but turned up empty.