Press the "Ctrl+alt+delete" key combination before the system logs on

If this setting is turned on, users are required to press the "Ctrl+alt+delete" key combination before logging on to Windows.

If you want to save this hassle, you can run Registry Editor, open Hkey_local_machinesoftwaremicrosoftwindowsntcurrentversionwinlogon, find DisableCAD, and change the value to 1 ( 0 The representative must press "Ctrl+alt+delete" according to the request, 1 representative does not need to press "Ctrl+alt+delete").

Tip: For a Windows XP system, you must set it to the standard logon method to make the setting work correctly.