You have a Windows 8.1 Pro desktop computer and a Windows RT 8.1 mobile device.
You sign in to the computer and the device by using the same Microsoft account.
You discover that the settings are not being synchronized between the Windows 8.1 computer and the
Windows RT 8.1 device,

You need to ensure that the settings are synchronized.
What should you do first?

A.
Enable the Trusted Hosts Group Policy setting.

B.
Enable the Configure Default consent Group Policy setting.

C.
From the PC settings page, click Trust this PC.

D.
From the PC settings page, modify the Privacy settings,

Explanation:
http://www.technospot.net/blogs/sync-windows-8-user-settings-pc-tablet-mobile-windows-live-id/
http://windows.microsoft.com/en-US/windows-8/sync-settings-pcs