
Method 3: Via User Accounts Advanced Settings
Select and set the radio button of Disabled. In the right pane, double click on Interactive logon: Do not require CTRL+ALT+DEL. Navigate to Security Settings -> Local Policies -> Security Options. Click on Start button, and type secpol.msc into Start Search box, and hit Enter to open the Local Security Policy Editor.
In the right pane, double click on DisableCAD registry key value, and set its value data to 0. HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System Navigate to the following registry key:. For users who want to implement the security setting that requires user to press Ctrl + Alt + Del shortcut combination to logon, just follow the trick below. Windows 7 and Windows Vista does not require user to press Ctrl + Alt + Del keyboard combination before booting up or reaching welcome screen or logon screen. Requiring the action to press Ctrl +Alt +Del before users log on ensures that users are communicating by means of a trusted path when entering their passwords. The mechanism is introduced as a security measure, which reduces the risk to attacks that attempt to intercept the users’ passwords. In Windows NT, Windows Server 2003 and Windows Server 2008, including its R2 variants, users have to press Ctrl + Alt + Del keys simultaneously and concurrently in order to gain access to logon screen securely.