Maybe you want to integrate Windows updates directly into the ISO or maybe you just want to avoid internet connections after you freshly installed your Windows OS, in this case, it would be useful that you download the KBs (Updates) manually before you start to install Windows OS, so here we go - the following article lists all solutions which are available to solve such problems.

WSUS

The possibilities

What's the best?

Nothing because it all does the same, there all downloading the updates and at the end, it’s up to you what you prefer WSUS is a solid solution which is still under active development. But there is also nothing wrong with downloading the updates manually each month and then place it on another HDD/SSD and collect your own little repository, at the end you won’t save any bandwidth because you need to download the update anyway, if in a pre-bundled package, manually or via a program. The point is that’s up to your own needs, my strategy is that I don’t have one, I download them via Windows update directly, I tried all of this solution but at the end, it’s up to you and your needs.

But there is a general suggestion - In the case you integrate your updates directly into an image, go with WSUS since it offers you an option which can directly do this, you also can work with a command line which allows you to slipstream the ISO easier.

In case you like to work with the original Windows update mechanism, give the Windows UpdaterMiniTool a try you will not regret it.