CompTIA A+ Core 2 (220-1102) — Question 514

The following error is displayed on a user's computer screen:

No operating system found -

Which of the following is the first troubleshooting step a technician should complete?

Answer options

• A. Disconnect external storage.
• B. Flash the BIOS.
• C. Replace the SATA cable.
• D. Turn on the device in safe mode.

Correct answer: A

Explanation

The correct first step is to Disconnect external storage because an external device could be interfering with the boot process. Flashing the BIOS, replacing the SATA cable, or booting in safe mode are more complex steps that may not address the immediate issue of the system not detecting an operating system.