Privacy and Security Enable or Disable Ctrl+Alt+Delete Secure Sign-in on Lock Screen in Windows 11


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Lock_screen_banner.png

The lock screen is the screen you see at startup and when you lock (Win+L) the PC. You will need to dismiss the lock screen to to see the sign-in screen and sign in to Windows.

For added security, you can enable secure sign-in to require users to press Ctrl + Alt + Delete on the lock screen before signing in. This guarantees that the authentic Windows sign-in screen appears, protecting the system from programs that mimic a sign-in to retrieve password info.

Reference:

This tutorial will show you how to enable or disable secure sign-in to require users to press Ctrl + Alt + Delete on the lock screen before signing in to Windows 11.


You must be signed in as an administrator to enable or disable secure sign-in.



Contents

  • Option One: Enable or Disable Secure Sign-in in netplwiz
  • Option Two: Enable or Disable Secure Sign-in in Local Security Policy
  • Option Three: Enable or Disable Secure Sign-in using REG file


EXAMPLE: Secure sign-in "Press Ctrl+Alt+Delete to unlock" on lock screen

Press_Ctrl+Alt+Delete_to_unlock.jpg





Option One

Enable or Disable Secure Sign-in in netplwiz


1 Open netplwiz.

2 Click/tap on the Advanced tab. (see screenshot below)

3 Check (enable) or uncheck (disable) Require users to press Ctrl+Alt+Delete under Secure sign-in for what you want.

4 Click/tap on OK.

secure_sign-in_netplwiz.png





Option Two

Enable or Disable Secure Sign-in in Local Security Policy


Local Security Policy is only available in the Windows 11 Pro, Enterprise, and Education editions.

All editions can use Option Three to set the same policy.


1 Open Local Security Policy (secpol.msc).

2 Expand open Local Policies in the left pane, and click/tap on Security Options. (see screenshot below)

secure_sign-in_secpol-1.png

3 In the right pane of Security Options, double click/tap on the Interactive Logon: Do not required CTRL+ALT+DEL policy to open its properties. (see screenshot above)

4 Select (dot) Enabled (disable secure sign-in) or Disabled (enable secure sign-in) for what you want, and click/tap on OK. (see screenshot below)

secure_sign-in_secpol-2.png

5 You can now close Local Security Policy if you like.




Option Three

Enable or Disable Secure Sign-in using REG file


1 Do step 2 (enable) or step 3 (disable) below for what you would like to do.

2 To Enable Secure Sign-in

A) Click/tap on the Download button below to download the file below, and go to step 4 below.​

Enable_lock_screen_Ctrl+Alt+Del_Secure_sign-in_for_all_users.reg


(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
"DisableCAD"=dword:00000000

[HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
"DisableCAD"=-

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System]
"DisableCAD"=dword:00000000

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System]
"DisableCAD"=-

3 To Disable Secure Sign-in

This is the default setting.


A) Click/tap on the Download button below to download the file below, and go to step 4 below.​

Disable_lock_screen_Ctrl+Alt+Del_Secure_sign-in_for_all_users.reg


(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
"DisableCAD"=dword:00000001

[HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
"DisableCAD"=-

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System]
"DisableCAD"=-

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System]
"DisableCAD"=-

4 Save the .reg file to your desktop.

5 Double click/tap on the downloaded .reg file to merge it.

6 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.

7 You could now delete the downloaded .reg file if you like.


That's it,
Shawn Brink


 

Attachments

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Last edited:

crypticlulu

Member
Local time
7:57 AM
Posts
30
OS
Windows 11
Hi,
I enabled this only with 1 registry key in Windows 11 and it works

HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
name = 'DisableCAD'
value = '0'

reference:
 

My Computer

System One

  • OS
    Windows 11

Brink

Administrator
Staff member
MVP
Thread Starter
Local time
1:57 AM
Posts
6,590
OS
Windows 11 Pro for Workstations
Hi,
I enabled this only with 1 registry key in Windows 11 and it works

HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
name = 'DisableCAD'
value = '0'

Hello, :-)

That does indeed work when only using the Security Policy in option 2.

The REG files in option 3 include the registry changes made by both options 1 and 2 to cover all possibilities. Gotta love all the different ways to set it.
 

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