By pressing Ctrl, Shift and Esc on your keyboard, you may already know that this launches the task manager.
Many organisations such as schools block access to the task manager via Ctrl, Shift and Esc via group policy so an access denied message appears.
But, by continuosly pressing the above key combination, the screen can be flooded with access denied messages and cause the machine to stop responding.
The way around stopping this, is to prevent the use of the combination so nothing happens when the combination is pressed.
There are a few ways to do this, one being to disable via the registry.
1) Access the registry
2) Go to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
3) Create a new DWORD DisableTaskMgr with a value of 1
Running via script
1) Within notepad, copoy the below txt:
Windows Registry Editor Version 5.00[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System]
2) Save the file with a .reg extension. For example DisableCtrlShiftEscape.reg
3) Open another notepad file and type the below
REGEDIT /s \\servernamer\share\filename.reg
(Replace the servername, share and reg file.
4) Save the file with a .bat extension
5) Double click on the batch file and the registry key will be imported.
6) Test, by hitting the key combination Ctrl, Shift and escape.