You can use the local group policy editor app to configure the option.
Windows 10 login screen background gpo.
Unfortunately windows 10 1703 broke that and it has been driving many it staff crazy trying to fix it.
After a few weeks of banging around with microsoft partner support they have just confirmed that this will be fixed shortly.
You can configure the sign in screen background you want on the lock screen settings page too.
This tutorial will show you how to enable or disable the ability to change the lock screen background image for all users in windows 10.
I used to do this using the desktop wallpaper gpo mainly to mess with people but it never worked unless the file was on the local file system.
Finally windows 10 build 18312 comes with a new group policy option that you can use to disable the acrylic blur effect feature on the sign in screen background image.
Active directory gpo.
How to change the login screen background on windows 10.
Windows 10 comes with lock screen image that can be customized in control panel.
In windows 10 version 1607 the lock screen background does not display if you disable the animate windows when minimizing and maximizing setting in this pc properties advanced system settings performance settings visual effects or if you enable the group policy setting computer configuration administrative templates windows components desktop windows manager do not.
Just like wallpaper there is a centralized way to control the lock screen image which is using group policy in a managed domain like corporate environment they typically would want to show company branded image or a disclaimer on the computer lock screen.
Add a custom background to the windows logon screen using gpo on active directory.
How to enable or disable changing lock screen background in windows 10 by default in windows 10 users are able to change their lock screen background image to windows spotlight picture or a slideshow as often as they like.
Select windows spotlight for an automatically changing selection of images from microsoft or select picture or slideshow to choose your own preferred background image.
Windows 8 and windows 10 make customizing your lock screen easy all you have to do is head to settings personalization lock screen.
If you have windows 10 enterprise or education you should be able to use a gpo to set a custom lock and home screen.
Disable blur on sign in screen in windows 10.