Case and point is a new login screen that appeared in both Windows 10 build 9888 and build 9901, and if you’re testing either version of the operating system you can easily modify the registry to enable the new feature.
Enable new logon experience
You are now all set to see the new login screen in Windows 10. To go back to the old login screen, follow the steps above, but this time change the value key from 1 to 0. The new login screen has no background and features full transparency, however, the time and date still present at the bottom left corner of the screen.
You also will notice a problem with multiple accounts, which apparently isn’t supported with the new login screen. User ians18, who discovered this hidden feature, at the Neowin forum reports: So this could be one of the reasons why Microsoft has not yet enabled the new login screen in the official Windows 10 Preview. Update, March 10, 2016: For Windows 10 Redstone, Microsoft is updating the logon screen by merging it with the Lock screen experience. Here’s how the new logon experience look like. All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.