Atualmente, existem imagens de plano de fundo separadas para a tela de bloqueio e a própria tela de logon. A partir do Windows 10 (Redstone) Build 14279
We’re merging the experience so there is just a single background – your Lock screen background. This is similar to the behavior seen on mobile. If you have a custom Lock screen background set, you will see your Lock screen background is now used for both the Lock screen and logon screen. If you’re a Windows Spotlight user – hold tight, you’ll see this change soon in a future build. We’re also working on some additional tweaks here to make the transition between the Lock screen and logging in much smoother.
Microsoft lança o Windows 10 Insider Preview build 14279 para PCs, incluindo novos recursos