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LFCS · Question #821

Which function key is used to start Safe Mode in Windows NT?

The correct answer is D. Windows NT does not support Safe Mode. Unlike later versions of Windows, Windows NT 4.0 and earlier operating systems do not natively support a Safe Mode boot option that is typically accessed via the F8 key.

Submitted by olafpl· Apr 18, 2026Operation of Running Systems

Question

Which function key is used to start Safe Mode in Windows NT?

Options

  • AF10
  • BF8
  • CF6
  • DWindows NT does not support Safe Mode

How the community answered

(34 responses)
  • A
    6% (2)
  • B
    3% (1)
  • C
    3% (1)
  • D
    88% (30)

Why each option

Unlike later versions of Windows, Windows NT 4.0 and earlier operating systems do not natively support a Safe Mode boot option that is typically accessed via the F8 key.

AF10

F10 is not the function key used to start Safe Mode in any common Windows version, nor did Windows NT support such a mode.

BF8

While F8 is the common key for Safe Mode in many Windows versions (starting with Windows 2000), Windows NT 4.0 and earlier did not have this feature.

CF6

F6 is not the function key used to start Safe Mode in any common Windows version, nor did Windows NT support such a mode.

DWindows NT does not support Safe ModeCorrect

Windows NT 4.0 and earlier versions do not include the 'Safe Mode' startup option, which was introduced with Windows 2000. Troubleshooting on Windows NT involved different methods, such as using the Last Known Good Configuration or directly editing startup files.

Concept tested: Windows NT Safe Mode availability

Source: https://support.microsoft.com/en-us/topic/description-of-microsoft-windows-2000-and-windows-server-2003-startup-options-including-safe-mode-df7d04e5-94f7-9252-823a-f126f555c421

Topics

#exam scope awareness#operating system boot#system modes#Windows NT

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