I know how i can disable auto logon in windows 7 by using
netplwiz, but is there a way ( possibly a keyboard combination pressed during startup ) that will prevent autologon only for this one boot?
Hold down the shift key while the machine starts.
You may need a hotfix for this to work, support.microsoft.com/kb/977534
I created a simple apicación in VB.NET, you just need to enable remote logging on the machine with auto logon from your computer and run the application. When the session is opened on the remote machine running NoLogin to disable the automatic startup, closed session and see that pressing OK and not entered automatically, or run it and restart your computer,if you want to re-enable would be the same process.
I found this somewhere else, and it works for me, everytime.
If you watch the num-lock light on the keyboard, during the log off process, you notice a little blip where the light turns off and then back on. If you wait for that to happen and then hold left shift it should work. 100% for me anyway. Perhaps windows is stopping the keyboard driver for some purpose during the log off? Who knows.
If you alternate right - left shift keys very quickly well Windows is booting it will bypass the auto log on and take you to a log on screen.