Summarize the following:
To do so, place the CD logo side-up in your computer's CD tray. The CD must have a version of Windows on it. Do this by clicking the Windows logo in the bottom-left corner of the screen, or by pressing ⊞ Win. On Windows 8, place the mouse cursor in the top-right side of the screen, then click the magnifying glass. It's in the bottom-left corner of the Start window. This option is near the bottom of the pop-up menu. If you have programs running, you may be prompted to click Restart anyway before you can continue. This key may also be a different key. Most computers will display a message on startup that says "Press [key] to enter setup" or something similar, so look for this message when your computer restarts to confirm the key you should press to access the BIOS. Consult your computer's manual or online support page to confirm your computer's BIOS key. You'll use the arrow keys to select it. The Boot tab may instead say Boot Options, depending on your computer's manufacturer. To do so, press the ↓ arrow until this option has a box around it. This will place it at the top of the boot options list. You may have to press a different key as indicated by the key legend on the far-right side of the BIOS screen. You should see a key prompt (e.g., F10) at the bottom of the screen that correlates to "Save and Exit"; pressing it will restart your computer, using the CD drive as a reboot point. You may have to press ↵ Enter to confirm the changes.

Summary:
Insert the CD into your computer. Open Start . Click . Click Restart. Press and hold Del or F2 to enter setup. Navigate to the Boot tab. Select the CD-ROM Drive option. Press the + key until CD-ROM Drive is first. Save your settings.