The good thing is you can actually download Windows updates for offline installs on as many systems as you want. So, if you ever need to, here is how you can download, install and update Windows without an active Internet connection.
Windows Server Update Services, also known as WSUS, is an integral component of Windows Server. It enables administrators to manage the distribution of updates, hotfixes, and patches released for Microsoft products.
A common problem with Windows updates is, that they come and go as they want to! You can either accept this or you can take matters into your own hands and get WuInstall, which will allow you to decide when and what updates should be installed.