[WindowsCentral.com]

Sync Your Settings, among other Windows 10 features are being deprecated or removed with the upcoming Fall Creators Update for PC. This is a standard procedure with each release of Windows 10, removing old features that are no longer used, or deprecating ones that Microsoft has plans to replace.
Today, Microsoft has provided a list of features it is planning to remove and deprecate with the launch of the Fall Creators Update, just as it did with the Creators Update. Among those features is "Sync Your Settings", a popular feature that allows users signed into a Microsoft account to sync settings across devices. That feature is being deprecated, with an updated system currently in the works to replace it.

Full story from the WindowsCentral blog...