The 'Interactive logon: Do not require CTRL+ALT+DEL' setting should be configured correctly.
[enabled/disabled]
(1) GPO: Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\Interactive logon: Do not require CTRL+ALT+DEL
oval:org.secpod.oval:def:8788
SCAP Repo OVAL Definition
2013-01-21