1) create a shortcut or copy the existing one (after the installation, a shortcut is available on your desktop)
2) click the Windows “Start” button and browse the list of “All Program” to find Startup folder
3) right-click on Startup and choose menu item: “open all users”
4) paste the shortcut inside the directory (example for Windows 7: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup )
5) rght-click on this new shortcut to get its properties
6) click the “Advanced…” button
7) tick the “Run as administrator” checkbox

tested with Windows 7

EDIT: since the version it’s better to deactivate the splashscreen at statup (open “Advanced options and select general_default.sli and then NO SPLASH = true ), see here for more details

Posted in: 5 Installation