[ubuntu] Ubuntu WILL NOT remove from UEFI boot menu

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http://ubuntuforums.org – I have installed Ubuntu 12.04. It was installed on a created partition, alongside windows 8. I uninstalled Ubuntu, deleted its partition, and merged it back with my C:/ drive. Now, Ubuntu will not remove from the Windows 8 boot menu in UEFI. I have tried booting into a Ubuntu USB and using efibootmgr. I have also tried /FixMbr and /Fixboot. Nothing has helped. I have JUST completely reinstalled windows 8 and it is STILL there. I was informed by Samsung that only they can reinstall UEFI if I send in my laptop. I do not wish to send it in, this is my last resort. So what can I do to remove it fr (Hardware)