You should install Update 2 manually, then install the Update 2 Update.
https://msdn.microsoft.com/en-us/library/mt695655.aspx (also a manual install)
>Hi everybody,
>
>Just wondering if I need to install Update 2 for VS 2015 manually or should I wait for Windows Updates? I just checked and my WU says that I'm up to date.
>
>Thanks in advance.
Craig Berntson
MCSD, Microsoft .Net MVP, Grape City Community Influencer