I have used pendirvelinux (http://www.pendrivelinux.com/) to install Ubuntu on another computer, but when I boot the computer this pops up:
'default boot device missing or boot failed. Insert recovery media and hit any key then select BOOT MANAGER to schoose a new boot device or to boot recovery media.'
What can I do? I removed Windows from the computer, so it's currently without a operating system(?). Has the Ubuntu I installed been removed or is it just hidden?