Posted 13 April 2017 - 04:49 PM
I don't know whether you're talking about the Lock Screen (from which you log in or shows again if you have the "enter password upon waking" setting on) then you use Settings, Personalization, Lock Screen Pane.
For the desktop background it's still Settings, Personalization, but the Background pane.
Brian AKA Bri the Tech Guy (website in my user profile) - Windows 10 Home, 64-Bit, Version 1803, Build 17134
. . . the presumption of innocence, while essential in the legal realm, does not mean the elimination of common sense outside it. The willing suspension of disbelief has its limits, or should.
~ Ruth Marcus, November 10, 2017, in Washington Post article, Bannon is right: It’s no coincidence The Post broke the Moore story