An analysis of the difference between Alt+ctrl+del and SHIFT+CTRL+ESC-application skills

In Windows 9X/2000/XP, most of us use the Alt+ctrl+del key combination to open Task Manager, in Windows 2000/XP we have a choice: Shift+ctrl+esc. However, in Windows XP, the functions of these two combination hotkeys are different:
(1) In any case, using the SHIFT+CTRL+ESC key combination is to open Task Manager directly.
(2) If you open the "Use Welcome screen" feature in the "User account" setting, pressing Alt+ctrl+del also opens Task Manager directly, but there is a "shutdown" item in its menu, which provides "standby", "Hibernate", "logout", "Lock Computer" features. If the use Fast User Switching feature is turned on in the user accounts setting, the user item is available in the label in Task Manager, where you can disconnect or unregister the current user's login. If the use Welcome screen is disabled, pressing Alt+ctrl+del Opens the Windows Security dialog box, and you also need to click the Task Manager button or press the "T" key to open Task Manager, and the Shutdown menu and the Users tab do not appear in Task Manager.

Small tip:
Do you choose Alt+ctrl+del or Shift+ctrl+esc?
Select Shift+ctrl+esc key combination to open Task Manager, it in addition to the above advantages, the author's use of experience to see it easier to single hand operation (our right hand is generally always holding the mouse): The left thumb press shift and Ctrl key, the middle finger press Esc key can be