单项选择题 An executive’s laptop screen has been damaged and will not power on. Which of the following is the FASTEST way to get the executive back online?（）

单项选择题 A user is reporting that their computer is making strange noises and randomly powers off. Which of the following tools would MOST likely be used to troubleshoot this problem?（）

单项选择题 Which of the following could cause an NTLDR error on reboot?（）