Use Ctrl+Alt+Del.

For some people, pushing Ctrl, ALT and Delete (Ctrl+Alt+Del) at the same time can be an
inconvenience, if not a complete impossibility. With Windows XP, there are two ways to
get around this.

First option: Configure the system so that you do not need to press Ctrl+Alt+Del at all
during logon (assuming you're not using the Welcome screen, in which case this key combo
is not required).

Open Control Panel then User Accounts.
Navigate to the Advanced tab.
Uncheck the Require users to press Ctrl+Alt+Del checkbox under Secure Logon.
Second option: Configure XP's accessibility options so that "sticky keys" will be
activated at the secure desktop: That way, you may "press" ALT, Ctrl, and DEL
sequentially rather than simultaneously. You can turn that on via the Accessibility
control panel. (Control Panel then Accessibility Options):

Bring up the Accessibility Control panel and navigate to the Keyboard tab.
Check Use Sticky keys.
Navigate to the General Tab.
Check Apply all settings to logon desktop.