I am not new to Ubuntu however, I'm having trouble installing it on a new Lenovo Ideapad laptop model G780. It came pre-loaded with Windows 8. When I install Ubuntu, it's fine but at dual-boot it gives me the following error:
File Missing or Corrupt /ubuntu/winboot/wubilder.mbr Status 0x000007b
I have to boot it from Wubi because the CD/DVD is not listed when I press F12 to go to the boot menu.