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Need additional ideas for blocking/disabling CTRL+ALT+DEL

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vertigoelectric

Post subject: Need additional ideas for blocking/disabling CTRL+ALT+DEL

Posted: May 7th, 2009, 9:23 pm

Joined: May 6th, 2009, 10:06 pm
Posts: 36
Location: California

I work in an elementary computer lab and I'm working on developing a kiosk-style GUI for the students. I've got most of the kinks worked out but these kids are notorious for using CAD (CTRL+ALT+DEL) for logging out when they aren't supposed to.

I saw the RegWrite scripts for enabling/disabling the buttons on the Windows Security box that comes up when you press CAD, but the student account is not administrator so that won't work. Tried it.

Also, this is NOT a Task Manager issue. Task Manager does not come up with CAD. I wish it did, because then I could just have a script that watched for it to pop up and immediately close it again.

I wouldn't post here if I hadn't looked for answers myself first, so if you could offer any suggestions I would appreciate it. Thanks!

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34t

Post subject:

Posted: May 7th, 2009, 10:15 pm

Joined: May 7th, 2009, 9:03 pm
Posts: 13

What version of Windows are you running in your lab? I just googled for "disable ctrl+alt+del" and there were a whole bunch of solutions (most for XP).

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sinkfaze

Post subject:

Posted: May 7th, 2009, 10:24 pm

Joined: March 19th, 2008, 12:43 am
Posts: 5480
Location: the tunnel(?=light)

Well this won't stop them but it may at least provide a moment of fear for them and a moment of amusement for you:

Code:

CTRL & ALT::
SplashTextOn, 400, 250, Illegal operation, % "`nYou are attempting a key combination which is not allowed on school computers.`n`nYou have already been advised that usage of this key combination is forbidden.`n`nThe principal will be notifying your parents and this incident will be reported on your permanent record. Please report to the teacher and repent for your sins, demon child."
return
CTRL & DEL::
SplashTextOn, 400, 250, Illegal operation, % "`nYou are attempting a key combination which is not allowed on school computers.`n`nYou have already been advised that usage of this key combination is forbidden.`n`nThe principal will be notifying your parents and this incident will be reported on your permanent record. Please report to the teacher and repent for your sins, demon child."
return
ALT & DEL::
SplashTextOn, 400, 250, Illegal operation, % "`nYou are attempting a key combination which is not allowed on school computers.`n`nYou have already been advised that usage of this key combination is forbidden.`n`nThe principal will be notifying your parents and this incident will be reported on your permanent record. Please report to the teacher and repent for your sins, demon child."
return

!x::SplashTextOff

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Last edited by sinkfaze on May 7th, 2009, 10:25 pm, edited 1 time in total.

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BoBo³

Post subject:

Posted: May 7th, 2009, 10:25 pm

Quote:

"There is no extra cost with your genuine Windows XP and Windows Vista." --> [Windows SteadyState]

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vertigoelectric

Post subject:

Posted: May 7th, 2009, 10:30 pm

Joined: May 6th, 2009, 10:06 pm
Posts: 36
Location: California

sinkfaze wrote:

Well this won't stop them but it may at least provide a moment of fear for them and a moment of amusement for you:

Code:

CTRL & ALT::
SplashTextOn, 400, 250, Illegal operation, % "`nYou are attempting a key combination which is not allowed on school computers.`n`nYou have already been advised that usage of this key combination is forbidden.`n`nThe principal will be notifying your parents and this incident will be reported on your permanent record. Please report to the teacher and repent for your sins, demon child."
return
CTRL & DEL::
SplashTextOn, 400, 250, Illegal operation, % "`nYou are attempting a key combination which is not allowed on school computers.`n`nYou have already been advised that usage of this key combination is forbidden.`n`nThe principal will be notifying your parents and this incident will be reported on your permanent record. Please report to the teacher and repent for your sins, demon child."
return
ALT & DEL::
SplashTextOn, 400, 250, Illegal operation, % "`nYou are attempting a key combination which is not allowed on school computers.`n`nYou have already been advised that usage of this key combination is forbidden.`n`nThe principal will be notifying your parents and this incident will be reported on your permanent record. Please report to the teacher and repent for your sins, demon child."
return

!x::SplashTextOff

Hahaha!! That would be great. Only two problems with this is 1) the kids usually don't look at the screen while they're pressing CAD, and 2) most of them couldn't read it anyway.

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vertigoelectric

Post subject:

Posted: May 7th, 2009, 10:32 pm

Joined: May 6th, 2009, 10:06 pm
Posts: 36
Location: California

BoBo³ wrote:

Quote:

"There is no extra cost with your genuine Windows XP and Windows Vista." --> [Windows SteadyState]

Hmmmm... this looks like something very promising, and it appears to be free. I'll look into this for the future. Thanks

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34t

Post subject:

Posted: May 7th, 2009, 10:32 pm

Joined: May 7th, 2009, 9:03 pm
Posts: 13

Another thought that occurs: it's likely that the kids are on guest accounts that don't have passwords or any privileges... therefore might it be easier to just tell them to click OK or click the profile icon to log back in if they managed to log themselves out?

What version of Windows are you using?

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vertigoelectric

Post subject:

Posted: May 7th, 2009, 10:36 pm

Joined: May 6th, 2009, 10:06 pm
Posts: 36
Location: California

34t wrote:

What version of Windows are you running in your lab? I just googled for "disable ctrl+alt+del" and there were a whole bunch of solutions (most for XP).

We run Windows XP Pro. I googled it as well, and though there are a handful of solutions, they all seem to require access to the registry or something similar.

I did manage somehow a long time ago to disable the Log Off, Shut down, and Task Manager buttons on one of the machines, but all I remember is that it was a rather tedious task, and just as tedious to undo.

If I could somehow get AHK to "dynamically" disable these buttons at runtime, then I could also do the same to enable them again. I've emailed the IT department requested assistance, since they have full control over things like permissions and whatnot. We'll see what they say. I'm willing to bet I'm on my own, though.

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vertigoelectric

Post subject:

Posted: May 7th, 2009, 10:41 pm

Joined: May 6th, 2009, 10:06 pm
Posts: 36
Location: California

34t wrote:

The entire network is domain-based, and everybody is require to log onto the domain with a valid username and password. Same for the students, except they all use a shared "student" account.

Getting them back in after logging out isn't really an issue, either. The issue is that they shouldn't be logging out in the first place, which takes them out of their coursework that they should be finishing.

You gotta understand these kids. They'll do anything and everything and for no reason other than because they can or know how, and sometimes they do things on accident because they just like messing around. Trying to kid-proof a Windows XP machine is not easy, but so far I've come really, really close. Blocking the CAD abilities would be a great help.

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