Enable or disable Secure Logon (Press Ctrl + Alt + Delete to login)

It’s important to keep your computer as secure as possible. One way to do so is to enable Secure Logon so that you are required to press Ctrl + Alt + Delete to log on.

Press the Windows button or click on start, type netplwiz or control userpasswords2 in start search or Run dialog box and press Enter.
Click the Advanced tab, select the Require users to press Ctrl + Alt + Delete check box, and then click OK.