There are a few steps involved:
That article seems to work well.
From: listsad...@lists.myitforum.com [mailto:listsad...@lists.myitforum.com]
On Behalf Of Klaus Hartnegg
Sent: Monday, September 19, 2016 5:26 AM
Subject: [NTSysADM] Howto upgrade Win10 to 1511?
I want to upgrade Win10 RTM (10240) to 1511 (not yet 1607). Does this
upgrade have a KB number? MS only points to the Media Creation Tool, but
that does not ask which version it should create. Wasn't there a way to
upgrade via WSUS, and should that not also be available in the Update
Catalog? How can I find it there?