There is a blue screen that appears when you press ctrl-alt-del on windows 7 or vista. I figured out how to disable the taskmanager but users can still shutdown the machine.
How can I prevent them from being able to do this?
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I would suggest to run a fresh antivirus– VladNov 20, 2010 at 23:44
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3Doesn't this have a clear purpose: kiosk applications in which one doesn't want members of the public to restart the system?– idealmachineNov 20, 2010 at 23:53
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idealmachine: Thats exactly why. I told the client he really doesnt need it but he asked me to look into it.– user3109Nov 21, 2010 at 0:06
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possible duplicate of disable ctrl-alt-del and shutdown for kiosk– Kate GregoryNov 21, 2010 at 0:54
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3 Answers
Because it is the login system of Windows that traps the CTRL-ALT-DEL combination (and so it is not accessible to user applications), you will need to change the system's keyboard scancode map to ignore at least one of those keys.
answered Nov 20, 2010 at 23:51
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Disabling alt solved it. To do that i used the binary 00000000000000000300000000003800000038e000000000– user3109Nov 21, 2010 at 2:31
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1I probably should include the remove script pastie.org/1314499 just name it anything.reg– user3109Nov 21, 2010 at 3:19
User Key: [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
Explorer]
System Key: [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\
Explorer]
Value Name: NoClose
Data Type: REG_DWORD (DWORD Value)
Value Data: (0 = shutdown enabled, 1 = shutdown disabled)
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\Current Version\Winlogon]
Value Name: ShutdownWithoutLogon
Data Type: REG_SZ
Value Data: 0
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+1 but i dont understand how this works. I still was able to turn off my comp... I looked this up technet.microsoft.com/en-us/library/cc938263.aspx and while i didnt notice shutdown grayed out i can do it through that blue screen– user3109Nov 21, 2010 at 0:17
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1are you looking for a way to disable ctrl+alt+del?– HPTNov 21, 2010 at 0:41
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@HPT: yes. I found out how to disable the taskmanager and now the only way someone can shutdown outside of the designated secret or password way except the blue screen through ctrl+alt+del– user3109Nov 21, 2010 at 0:56
You could use AHK (auto hot key) to stop these keys sending what they should, i was considering making a program to do this for the whole keyboard as a joke. You could replace the keys with a message box says "you are not allowed to do that!" or even have a hidden keycombo to put back the functionality of the keys
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1AutoHotkey doesnt stop it. I remapped alt, i found how to disbale taskman but this is for a kiosk and the client doesnt want the comp to be shutdown by the public– user3109Nov 21, 2010 at 0:05
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