"1Create a LiveDVD or LiveUSB of Ubuntu (>=12.04.2) 64bit ONLY.
2In your BIOS, disable QuickBoot/FastBoot and Intel Smart Response Technology (SRT). If you have Windows8, also disable FastStartup.
3Boot your PC using the LiveDVD or LiveUSB and choose "Try Ubuntu". If you get a Secure boot or signature error, you may wish to disable SecureBoot, then retry to boot the disk.
4Install Ubuntu from the Live CD/DVD or Live USB in the usual manner, then reboot the PC."
I have completed steps 1-3 but but my HP pavilion will not boot to Ubuntu CD. What can be the problem?