I cannot speak to the Windows burning utilities, so unless you are sure that you are burning it as an image this is the first thing to check as others pointed out. I would assume however that if you double-click an iso image that Windows should be smart enough to do the right thing.
Otherwise you might also want to try and put the iso on a usb stick, there are plenty of howtos out there.
Originally Posted by CrazyLee
Yes, that was the first thing I did, was to change my BIOS boot sequence.
Ok, are you confident with this? I mean, is this something we have to make sure that it was done right? Like, have you done this with other bootable discs before? (Hope this question does not come across wrong, I can't guess your level of expertise).
Could you describe what happens exactly when you try to boot from CD? Does it just boot to Windows?
What Windows are you using? Does your machine maybe have SecureBoot enabled, thus preventing it to boot anything else than Windows?