I have some difficulty in locating the keyboard filter in the group editor. Tried to search for the cabinet file in Windows 7 Embedded SP1 Disc to no avail.
Other than using the keyboard filter, is there any method to disable the "Ctrl+Alt+Del" and "Alt+F4" function? The 2 keyboard combinations are needed to disable to prevent users from closing the running programs and to logoff from the account. Read and search throught the internet and found that gotta download the Windows Lockdown Manager to enter Keyboard filter.

Need some advice from the issues.