can you press F8 when windows 8 starts up?

can you press F8 when windows 8 starts up?
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http://windows.microsoft.com/en-NZ/windows-8/windows-startup-settings-including-safe-mode

There are two ways to get to the Windows Startup Settings screen in Windows 8 :

• If you're not signed in to Windows, tap or click the power icon from the sign-in screen, hold Shift, and then tap or click Restart
• Or, if you're already signed in:
  1. Swipe in from the right edge of the screen, tap Settings, and then tap Change PC settings.
     (If you're using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, click Settings, and then click Change PC settings.)
  2. Under PC settings, tap or click General.
  3. Under Advanced startup, tap or click Restart now.
  4. On the Choose an option screen, tap or click Troubleshoot.
  5. Tap or click Startup Settings.
  6. Tap or click Restart.
  7. On the Startup Settings screen, choose the startup setting you want.
  8. Sign in to your PC with a user account that has administrator rights.