I have windows 8 installed on my laptop. I own a dell XPS 15 L502X laptop. I am trying to install ubuntu using USB but whenever I try rebooting my laptop to start the installation, There's an error "OPERATING SYSTEM NOT FOUND". Laptop is unable to find OS on my USB.

Thanks in advance.

  • How did you create the USB? – Mitch Nov 11 '13 at 5:51
  • You might have to enable USB booting in the bios. Do you see the USB device when booting up? – ortang Nov 18 '13 at 13:21
  • Please use the contact us link at the bottom of this page to ask for your unregistered account and your new registered account to be merged. Thanks. – Eric Carvalho Nov 18 '13 at 13:25

Use a USB universal installer http://www.pendrivelinux.com/universal-usb-installer-easy-as-1-2-3/ Maybe you dont have a bootable pendrive. Check if you change in bios to boot by removable devices first

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