Upgraded my MB/CPU/RAM/VIDEO from Intel 965P, ATI Video, P4 3.0 to Nvidia 680i, Nvidia Video, C2D 2.4 Un-installed my old video drivers and restarted. Ran Sysprep /generalize /audit /shutdown I didn't use any answer files of any time. Put all new equipment in old case and booted up. Plug and play allowed all chipset drivers to load and the system loaded without major issue. Installed all the new drivers from the web (video, chipset, sound, etc), no dings in device manager, everything looks good except... Now, the system tries to logon as Administrator with Blank Password, My admin account has a password so it fails, it lets me click switch user to logon as myself. Once I logon, I'm presented with the sysprep GUI screen. I close that and everything is normal. I figured sysprep needed to complete something so I blanked the admin password, rebooted and let it autologon. That worked fine but the admin logon got the same sysprep GUI. Reboot, no change, still auto logs on to admin and presents sysprep GUI. I put password back on admin account so now when the auto logon fails I use switch user option and logon as myself and close the sysprep GUI. I check registry locations for auto logon info, can't find any, used autoruns (sysinternals) and can't find any sysprep entries, used hijack this, same deal, no sysprep entries. I'm looking for any ideas of what I may have missed and why I'm getting this auto logon behavior.