The issue with Silverlight getting presented as a needed update on Windows Server Core editions has been reported many times in the past but since March 2009 there have been no official answers that I can find and it seems to be unknown whether this is an expected behaviour or a known bug.

Would it be possible to get an update on this issue?

See the following threads for more information:

https://social.technet.microsoft.com/Forums/windowsserver/en-US/42231b43-8948-49b5-a784-c6dd9abffe27/silverlight-2-wsus-windows-server-2008-core?forum=winservercore

https://social.technet.microsoft.com/Forums/windowsserver/en-US/6c29f3c2-735c-40e8-8f6e-c2591c00f489/server-core-ie7-wsus-update-patch-tuesday-august-2008?forum=winservercore

https://social.technet.microsoft.com/Forums/windowsserver/en-US/e3e7c746-52f2-432b-ac2e-bd714c09c416/why-does-a-silverlight-update-is-being-delivered-to-a-hyperv-server-2012-core?forum=winservercore

Fausto

• Edited by FaustoNascimento Monday, March 23, 2015 7:10 PM

Hi Fausto,

If you meet the WSUS is not completing Silverlight5 install using WSUS  you can install the following update:

MS12-034: Description of the security update for Silverlight 5: May 8, 2012

http://support.microsoft.com/en-us/kb/2636927

Im glad to be of help to you!