Block user from showing account details on sign-in

Supported on: At least Windows Server 2016, Windows 10

Registry

HKLM Software\Policies\Microsoft\Windows\System

Value name: BlockUserFromShowingAccountDetailsOnSignin

Enabled: BlockUserFromShowingAccountDetailsOnSignin = 1

Disabled: BlockUserFromShowingAccountDetailsOnSignin = 0

Description

This policy prevents the user from showing account details (email address or user name) on the sign-in screen. If you enable this policy setting, the user cannot choose to show account details on the sign-in screen. If you disable or do not configure this policy setting, the user may choose to show account details on the sign-in screen.