Most computers after you configure operating system set to boot in the first place, with the main hard drive. This is done deliberately because the user can leave CD/DVD in the drive or disconnect the USB flash drive that can cause you to attempt to boot from the removable media. But if you need to boot from the optical drive, you must change the BIOS settings.
To enter BIOS, when the computer starts you have to press a hotkey in a strictly defined time frame. The most common case is the use of Delete, a few at least F2, but can be others. In any case, the system at startup for a few seconds shows a set of hotkeys, where you can learn what you need to press.
Most PCs have a standard BIOS, which is controlled only with the keyboard. But new computers already come with a graphic interface basic programs (UEFI BIOS), where in addition to the keyboard to use the mouse. In General, the configuration of both versions is similar, and varies only in the office.
Steps are slightly different depending on the manufacturer (indicated in the top row). In the Award BIOS go to Advanced BIOS Features and after that in the paragraph First boot device select CD-ROM (please use the Enter key, and a list will appear). After selection, press Esc, select Save & Exit Setup and then press Y.
In AMI BIOS, go to Boot, then to Boot Device Priority, after subsection 1st Boot Device set to your optical drive (displayed model). Then will come under the Boot, press Esc and go to Exit. Select Ext & Save Changes and press Enter.
In Phoenix Bios, open the Advanced submenu, and then, under First boot device select CD-ROM (please use the Enter key, after which pressing a list will appear). Then press Esc and go to Exit. Next, select Save & Exit Setup and then press Y.
After performing the steps above, your computer will always be trying to boot from the optical media. If the disk device is missing, loading will be made in the usual manner, that is, settings can not be changed.
In the case of a one-time need boot from CD/DVD most of the PC at startup to choose to boot from a different drive, concerning set in the settings. To do this, at startup you should press F8 or F12 (displayed when you start the system in the list of hotkeys).
How to enter BIOS
To enter BIOS, when the computer starts you have to press a hotkey in a strictly defined time frame. The most common case is the use of Delete, a few at least F2, but can be others. In any case, the system at startup for a few seconds shows a set of hotkeys, where you can learn what you need to press.
Configuring boot from DVD drive
Most PCs have a standard BIOS, which is controlled only with the keyboard. But new computers already come with a graphic interface basic programs (UEFI BIOS), where in addition to the keyboard to use the mouse. In General, the configuration of both versions is similar, and varies only in the office.
Steps are slightly different depending on the manufacturer (indicated in the top row). In the Award BIOS go to Advanced BIOS Features and after that in the paragraph First boot device select CD-ROM (please use the Enter key, and a list will appear). After selection, press Esc, select Save & Exit Setup and then press Y.
In AMI BIOS, go to Boot, then to Boot Device Priority, after subsection 1st Boot Device set to your optical drive (displayed model). Then will come under the Boot, press Esc and go to Exit. Select Ext & Save Changes and press Enter.
In Phoenix Bios, open the Advanced submenu, and then, under First boot device select CD-ROM (please use the Enter key, after which pressing a list will appear). Then press Esc and go to Exit. Next, select Save & Exit Setup and then press Y.
After performing the steps above, your computer will always be trying to boot from the optical media. If the disk device is missing, loading will be made in the usual manner, that is, settings can not be changed.
An alternative way
In the case of a one-time need boot from CD/DVD most of the PC at startup to choose to boot from a different drive, concerning set in the settings. To do this, at startup you should press F8 or F12 (displayed when you start the system in the list of hotkeys).
