220-802 · Question #1028
A computer is displaying an "Operating system is not found" error whenever it is powered on. The computer is secured in a cabinet, so that only the front panel is accessible. The technician boots…
The correct answer is A. Change the boot order in the BIOS so that hard drive is the first bootable device. The 'Operating system not found' error often occurs when the BIOS boot order is incorrect - the system is attempting to boot from a device (like a USB drive, optical drive, or network) before trying the hard drive where Windows is installed. Since the technician confirmed a…
Question
A computer is displaying an "Operating system is not found" error whenever it is powered on. The computer is secured in a cabinet, so that only the front panel is accessible. The technician boots from a Windows installation CD and finds that there is a Windows folder on the computer. Before attempting a re-installation of the operating system, which of the following should the technician do NEXT?
Options
- AChange the boot order in the BIOS so that hard drive is the first bootable device.
- BStart Recovery Console from the Windows installation CD and run FDISK.
- CStart Recovery Console from the Windows installation CD and run a CHKDSK /R.
- DPerform a side-by-side installation of Windows on the hard drive from the installation CD.
How the community answered
(34 responses)- A91% (31)
- B6% (2)
- C3% (1)
Explanation
The 'Operating system not found' error often occurs when the BIOS boot order is incorrect - the system is attempting to boot from a device (like a USB drive, optical drive, or network) before trying the hard drive where Windows is installed. Since the technician confirmed a Windows folder exists on the drive, the OS is likely intact. The simplest fix before any destructive action is to verify and correct the BIOS boot order so the hard drive is first. FDISK is a partition tool that could destroy data and is not appropriate here. CHKDSK /R is a reasonable second step if boot order doesn't fix it, but not the first. A side-by-side installation would risk data and is premature.
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