This past week has seen a bizarre turn of events for those who are using the most recent version of Windows 10, the Anniversary Update, version 1607.

On Friday, Dec. 9, Microsoft released a cumulative update for version 1607. As I , cumulative update KB 3201845 brings Windows 10 version 1607 up to build 14393.479. I installed it through Windows Update on two Win10 1607 machines (see screenshot).

But for reasons unknown, Microsoft didn’t update its official Windows 10 to mention the new version. KB 3201845 was, and is, available for download from the . But the associated KB article was pulled down last night. Going to the brings up a “This page doesn’t exist” notification.

When KB 3201845 was first released, many of us wondered why Microsoft would push out a cumulative update just a few days before Patch Tuesday (or the “B Week Tuesday” in Microsoft-speak). It doesn’t make any sense, even though KB 3201845 has been around in the Windows Insider Preview Release ring .

on every support.microsoft.com page saying “If you are experiencing issues connecting to the internet we recommend you restart your PC,” but there’s been no mention of why or how the problem started, and when or if it will be fixed.