Disable or Change Ctrl + Alt + Del for Kiosk Mode

Question

I've successfully set up Kiosk mode on a Windows 10 Enterprise PC. I have it so that it auto logs in with the local user name and it launches the app. I've disabled Ctrl + Esc via Keyboard filters and also Ctrl + Alt + Del. My main goals is to restrict users from entering those key combinations. If they do, it ends Kiosk mode and they are sent to the login screen showing the user name and a blank password field. They do not know the password and they don't have the power button available to them to restart to trigger the autologin.

I just need Ctrl + Alt + Del to go away and this setup will work. I've even tried using SharpKeys with no luck. I'm starting to think this is a limitation of the Kiosk mode in Windows 10.

I was able to create a scheduled task to restart the computer each time the local user is disconnected (when someone presses Ctrl + Alt + Del), however it restarts when I remote into it with my admin account! DOH!

Any suggestions would be helpful at this point. I work for the government, so funds are tight and this is what I have to work with.

Answer 1

Hi
@Emily Dullum
I found a method might work, before do that please backup your registry as follows
https://support.microsoft.com/en-us/topic/how-to-back-up-and-restore-the-registry-in-windows-855140ad-e318-2a13-2829-d428a2ab0692

Disable Ctrl-Alt-Del:

1 Save the following text into a text file named disable_Ctrl_Alt_Del.reg:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout]
"Scancode Map"=hex:00,00,00,00,00,00,00,00,03,00,00,00,4d,e0,1d,e0,4b,e0,1d,00,\
00,00,00,00

2 Double click either of them to disable

3 Shutdown and restart

Acutally it blocks all hotkeys using ctrl/alt/del. like ctrl+c/ ctrl+v , currently my pc is unable to execute these collocations. let alone ctrl+alt+del

Hope this can help you
If your need further help, be free reply to me at your convenience.

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Answer 2

Hi

To think differently, did you tried to change the CTRL-ALT-DELETE menu to remove option you don't want the user to see ?

That way even if the user hit the CTLR-ALT-DELETE, having no menu will just allow the user to hit ESC to return to your application. That way it's a lot easier than removing the keys set.

Thanks

Philippe

Answer 3

I have both of those policies enabled and the user is still able to use Ctrl Alt Del.

Answer 4

Hi，
@Emily Dullum
I suggest you try this gpo setting first rather than other complicated operations.
gpedit.msc-administrative template-system-logon-Hide Entry Points for Fast User Switching

After enable Hide Entry Points for Fast User Switching, the outcome will be

It also works when hit crtl+alt+del, turns out that only shows LOCK, Sign out, Change a password, Task Manager.
I hope this will meet your demand that doesn’t end Kiosk Mode.
If your need further help, there have complex methods using Windbg to edit all hotkeys, otherwise here is another link for your reference

https://blog.kiosksimple.com/2014/08/18/blocking-ctrl-alt-del-and-other-windows-shortcuts-on-your-kiosk/
lease Note: Since the websites are not hosted by Microsoft, the links may change without notice. Microsoft does not guarantee the accuracy of this information.

Hope this can help you
If your need further help, be free reply to me at your convenience.

==============================================================================

If the Answer is helpful, please click "Accept Answer" and upvote it

Answer 5

After enabling that policy, Ctrl + Alt + Del still ends the Kiosk session.