Startup Password Feature in windows makes it more secure. Windows will asks for "Startup Password" before user account password.
Follow these easy steps to setup.
1. Start => Run => syskey [Enter] (security warning may popup, click yes to conform).
2. Click Update on the Securing the Windows Account Database window.
3. Select the radio button "Password Startup" and provide the password and click OK to conform.
4. Lastly, click ok on "Success" Window.
When the computer reboots it shows a window to enter Startup Password before starting windows.