With default settings, the currently available public build of Windows 10 displays Microsoft account email address on the login or sign-in screen when you are using a Microsoft account to sign-in to Windows 10.
While there is no harm in displaying your Microsoft account email address on your PC’s sign in or login screen, many users want to stop Windows 10 from showing their Microsoft account email address on the login or sign in screen for privacy reasons.
Before this, if a user wanted to hide account information on the login screen, one had to either use the Group Policy or Registry Editor. You can go through our how to hide username and email address from Windows 10 login screen guide detailed instructions.
Hiding account details on Windows 10 login screen
Well, Microsoft has listened to users’ feedback and added an option under Settings to quickly show or hide account details like email address on the sign-in screen of Windows 10.
Users running Windows 10 14328 or above build can now show or hide account information on the login screen by competing below mentioned instructions.
Show or hide email address on sign-in screen in Windows 10
NOTE: This feature is available only in Windows 10 build 14328 and above builds. Check your Windows 10 build number before proceeding further.
NOTE 2: In Windows 10 14328 and above builds, Windows 10 doesn’t display account details such as email address on the sign in screen.
Step 1: Open Settings app by either clicking Settings icon in the left side of the Start menu or using Windows logo + I keyboard shortcut.
Step 2: Click Accounts. Click Sign-in options.
Step 3: Under the Privacy section, turn off the option labelled Show account details (e.g email address) on sign in screen to hide the account details including email address on the sign in screen of Windows 10.
How to recover or reset Microsoft account password in Windows 10 guide may also be of interest to you.