Perhaps a Net Send to pop a message…then wait 5 seconds…and then lock it.  You 
could  copy a custom lock screen photo to the computers ahead of time and set 
it with regedit as part of your procedure. Then undo it after the emergency.  
But that is a lot of moving parts and relies on computers being on to undo..

From: [email protected] [mailto:[email protected]] On 
Behalf Of roycroet
Sent: Tuesday, October 20, 2015 11:21 AM
To: [email protected]
Subject: Re: [NTSysADM] campus lockdown question

Yes I can, is there any way to display a custom message in that lock screen?


Le mardi 20 octobre 2015 10h43, Erik Goldoff 
<[email protected]<mailto:[email protected]>> a écrit :

do you have the ability on all the windows systems to remotely execute 
something like :
%windir%\system32\rundll32.exe user32.dll,LockWorkStation

same as CTRL-ALT-DEL , Lock Workstation from the keyboard


On Tue, Oct 20, 2015 at 10:28 AM, roycroet 
<[email protected]<mailto:[email protected]>> wrote:
Good morning,

I've been asked by our school to lock and display a message on all computers in 
case of a campus lockdown.

SMS and alert on our website are not enough for upper management, they want to 
completely lock the systems.

Any idea would be greatly appreciated!


Reply via email to