The help desk receives a call from a customer who reports a computer issue that occurs after trying to install Windows 10 with a disc that the IT department provided. When the customer reboots the computer, instead of loading Windows, the computer displays the Windows installation program screen again. Which probable cause should the IT technician place at the top of the list of most obvious reasons for the error?

The help desk receives a call from a customer who reports a computer issue that occurs after trying to install Windows 10 with a disc that the IT department provided. When the customer reboots the computer, instead of loading Windows, the computer displays the Windows installation program screen again. Which probable cause should the IT technician place at the top of the list of most obvious reasons for the error?

• The boot order in the BIOS is incorrect.
• The customer forgot to remove the disc from the optical drive.
• The hard drive in the computer is beginning to fail.
• The Windows 10 installation did not complete correctly.