As part of this months patch Tuesday Microsoft have released Cumulative Updates for Windows 10 version 1511 (KB3176493) and Windows 10/Server 2016 version 1607 (KB3176495)
For those running these versions of Windows 10 you should get these brought down by Windows Update.
For Windows Server 2016 Microsoft have yet to enable Windows Update online and WSUS support. If you wish to install these updates on that OS then you will need to download the MSU file and perform a manual installation.
Update: WSUS support for Windows Server 2016 RTM is present if you are running a WSUS server on this OS version. See my recent post regarding this
You can find the MSU files on the Microsoft Update Catalogue website here
To install the MSU file simply double click on it to launch the Windows Update offline update utility.