Today it is difficult to find a computer in which only one disk is installed, and the operating system can be written on any of them. In order not to put the basic input / output system (BIOS) before the choice, it is given the sequence in which to look for the OS loader on all available disk drives. If, for example, you want the system to boot from a DVD, then it should be placed at the very beginning of this queue by changing the appropriate settings using the BIOS settings panel.
Instructions
Step 1
Enter the BIOS setup panel. To do this, you need to initiate a reboot of the main operating system, wait until lines with information about the hardware installed in the computer and the results of checking the base system of its operability pass through the screen. After all these tables that are useful to the system, but incomprehensible to most users, an inscription will appear on the screen with information about which key should be pressed to bring up the BIOS setup screen. This line in English in the lower left corner of the screen can flash very quickly, and you will not have time to press the desired combination. It's okay - the first time try at least to read the designation of the key (most often these are the Delete or F2 buttons) and try again. If you can't catch the right moment several times in a row, then try to focus not on the inscriptions, but on the light signals - all LEDs (NumLock, CapsLock, etc.) will simultaneously wink at the moment when you need to press the key to enter the BIOS settings menu.
Step 2
Find the section in the settings panel that contains the settings for the polling sequence of the computer's disks - depending on the manufacturer and BIOS version, it can be called differently. If you see a section called Boot, then you probably go there. If such an inscription is not in your version of the panel, then look for the section called Advanced BIOS Features. Each manufacturer also comes up with a way to set the order on their own - for example, it can be four lines with the texts 1st Boot Device, 2nd Boot Device, etc. Moving along these lines using the up / down arrow keys, you need to install the desired disk by selecting it with the PageUp / PageDown or +/- buttons. In some versions of the panels, these lines are hidden one level deeper - to get to them, you need to go to the Boot Sequence line of this section, press Enter, and then do the described manipulations in the subsection presented to you.
Step 3
Exit the settings panel, remembering to save your changes. In most BIOS versions, this can be done by pressing the Esc key. When you close the panel in this way, the system asks if you need to save the changes - give the correct answer.
