Personalized login screen

Dear Sir,
How can i make my log-in screen personalized? my laptop is Acer aspire4720? co’z i want my personal pics on login screen.thank you very much.

I would simply go to google.com and search for words such as “personalize login screen.” There seem to be websites and bulletin boards where this is discussed. I would focus on the particular operating system you’re using (Windows XP Home Edition; Vista; etc.) rather than the particular brand of computer.