How to enable Press Ctrl Alt Del Secure Logon On Windows 7 or Vista

Method 1: User Accounts Advanced Settings

1. Click start and type netplwiz into Start Search box, it opens the User accounts dialogbox.
2. Go to Advanced Tab.
3. Under “Secure logon” section, select and check the checkbox for Require users to press Ctrl+Alt+Delete option
4. Click apply and OK.

Method 2: Registry editing.

1. Click start and type netplwiz into Start Search box, it opens Registry editor.
2. Navigate to the following registry key:HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionPoliciesSystem
3. In the right pane, double click on DisableCAD registry key value, and set its value data to 0

Method 3: Using Group policy.

1. Click on Start button, and type secpol.msc into Start Search box, and hit Enter to open the Local Security Policy Editor.
2. Navigate to Security Settings >> Local Policies >> Security Options.
3. In the right pane, double click on Interactive logon: Do not require CTRL+ALT+DEL.
4. Select and set the radio button of Disabled.
5. Click Apply and OK.