One moment you will reinstall the operating system or will be doing booting from CD or DVD media. For it will be done booting from the CD or DVD ROM. But at the time of booting the, computer still cant booting from CD or DVD ROM.
How to fix can not booting from CD or DVD ROM?
To fix computer cant boot from CD or DVD media, try the following tips:
Make sure that the CD or DVD ROM is detected in the bios.
This can be seen in bios, if the CD or DVD ROM hardware not detected by BIOS then make sure that the CD or DVD ROM hardware is in good condition / not damaged. Also make sure the data cable of CD or DVD ROM in good condition / not damaged.
If the CD or DVD ROM hardware is detected but it still will not boot from CD or DVD ROM then do step number 2 below.
Make sure that you first boot is from CD or DVD ROM
Log in to bios setup, at the first time of computer is turn on, press Delete key, FI, F2, esc, or F10 depending on the type of motherboard and bios are used.
Search and find on the Boot menu, change First Boot to CD or DVD ROM. After that save bios setting, then get out of the bios and restart your computer.
If the computer still not boot from CD or DVD ROM make sure that you are using a bootable CD (CD which is bootable via CD / DVD ROM), and make sure the bootable CD or DVD are used in good condition, clean, and not corrupt.
Hopefully with these tip how to fix wont boot from cd or DVD ROM hardware, your problem about can not boot from CD or DVD can solve itself.