The Windows Server Core Edition is a really good option because there aren’t that many binaries as there would be in a full installation. Due to the smaller number of objects you more stability, simplified management, reduced maintenance and a reduced risk to get attacked.
So you have a Windows Server Core Edition installed but want to update the server manually. Maybe this is a virtual machine on your local PC that needs updating and you don’t have WSUS running.
About everything you previously managed using the GUI in Windows is now done with the sconfig. You can edit your server’s name, the domain, network settings, date/time, shutdown the server but also manage the updates.
Connect to the server and you get this screen:
Enter the command “sconfig” an you get the following screen:
Enter the number “6” and the following screen appears:
Enter either “R” for recommended updates or “A” for all. I enter “R” because I don’t every update.
After some time, Windows will return a list of all the updates found. You can enter “A” to install all of these updates, “N” to not do anything or supply a specific number.
After you made your choice Windows will start downloading the update(s). Windows will automatically start the installation after the download(s) is completed.
After the installation you’re likely to get a message that you need to reboot server.