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?
Super User is a question and answer site for computer enthusiasts and power users. It only takes a minute to sign up.
Sign up to join this communityThere 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?
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.
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
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