https://908labo.com/2017/11/10/%d8%a5%d9%82%d9%84%d8%a7%d8%b9-%d9%84%d8%a7%d8%a8%d8%aa%d9%88%d8%a8-%d8%a8%d9%8a%d9%88%d8%b2-%d8%af%d9%8a%d9%84-%d8%a7%d9%86%d8%b3%d8%a8%d9%8a%d8%b1%d9%88%d9%86-15-boot-from-cd-dvd-bios-dell-inspiron/