The method is as follows:

1. In the first step, press the power button of the chassis, see the picture below, and go to the following steps.

2. Step 2. After performing the above operations, during the startup process, press the "Del" button on the keyboard to enter the setupBIOS interface, see the picture below, and go to the following steps.

3. Step 3. After performing the above operations, move down to the "

?Advanced BIOS Features" page, and then switch to the "Advanced BIOS Features" page, see Picture below, go to the steps below.

4. Step 4. After performing the above operations, click the "First Boot Device" option, see the picture below, and go to the following steps.

5. Step 5. After performing the above operations, you can see "Hard Disk Drives", as shown in the picture below. In this way, the problem is solved.