Zend certified PHP/Magento developer

What does Windows 10 (updates) do if you permanently deny it network access?

If, after installing a fresh copy of Windows 10 and applying current updates, you take the machine offline permanently, what will it do?

Will it work for six months then lock you out until you plug in the network cable for an update check? Or will it just run forever at the current version and not check for or nag about updates ever again?

Has anyone tried this?

(This question is not about the reasons for doing this, or the merits and demerits of the update system, just a question about the behavior.)