Just turned on my main Laptop and got KB3122947 as a fast download and installed ok.
According to MS it addresses a fix for the settings changes the last 1511 update did on it's own.
Some settings aren't retained when users upgrade to Windows 10 Version 1511 from an earlier Windows 10 version
After an upgrade to Windows 10 Version 1511 from an earlier version of Windows 10, a very small number of users may have had their settings for Advertising ID, Background Apps, SmartScreen Filter, and Sync with Devices incorrectly set to the system defaults.
For more information about this issue, see Microsoft Knowledge Base article 3121244.
This update restores the user's setting preferences if the settings were not retained through the upgrade process.
How to get this update
This update will be downloaded and installed automatically.
There are no prerequisites for installing this update.
You don't have to restart the computer after you apply this update.
Update replacement information
This update doesn't replace a previously released update.
Ummm funny this update changed some of my settings under PRIVACY > BACKGROUND APPS >
it changed 3 of my selection choices that were previously TURNED OFF to TURNED ON.