Check out the autologon feature.
In closing, there is no single user mode of this OS...
I recently built & installed a new server for my small-office network (dual Opteron, SBS2003, 4GB RAM, RAID1 OS & apps & RAID5 data. Nice machine!).
My personal desktop (p4 2.53, 2GB RAM, Asus mobo, XPproSP2) was setup as a single-user PC,did not require CTR+ALT+DEL or password logon, great for quick restarts. During testing, I created a fictitious employee (Bob)on this PC and joined him to the server's Domain to test certain functionalities.
After this testing was complete, I decided to fire Bob. I deleted his account from my PC, along with any folders with his name on them, searched the PC (hidden files & folders too) for ''Bob'' and deleted any reference to him.
Well, now when I try to restart I am always required to CTR+ALT+DEL and logon, it will not bypass these screens as before. Any ideas how to get my quick-boot back? Thanks all.