New
#21
Please check that when you made the changes in the BIOS you then selected "save and exit" and not just "exit".
Then, when it boots from DVD you should see something that says "if you want to boot from DVD press any key..." and you press something on the keyboard.
If it still does not work I am forced to assume that the DVD reader is not cooperating OR that the DVD you are using has issues.
Can you use the current DVD on another PC, make an iso file with ImgBurn (or any other program if you know it better), and then place that on a usb pendrive/thumbdrive with Rufus (in the setting called "format options" click on the icon that looks like a disk and select your ISO)? Then you connect the USB drive and boot from it (again you go in the BIOS boot options or if you have it select the "boot selection popup", should tell you what key/button to press, then you choose what you want to boot from)
If that does not work too, download a new Iso from the links in the tutorial.