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I originally had a Windows 8 operating system from which I tried to switch to Linux via USB installation. My computer's hard-drive became completely wiped out and the only thing that it would boot from was the Ubuntu USB I had previously created. When I turn on my computer, it gives me the options of Installing Ubuntu or Trying Ubuntu. I Installed Ubuntu (like I was supposed to) and restarted my computer. My computer works well until I shut it down or take out the USB. Then, my hard-drive is once again wiped out and the only thing I can do is plug in the USB and use it with the USB inside the computer. I've attempted this several times, with different flash drives but nothing changes.

I'm using the Ubuntu 12.04 LTS 64 bit desktop

My computer Model is Samsung ativ book 9 Lite model NP915S3G

I've attempted to go through the steps the ubuntu help by the Boot Repair (https://help.ubuntu.com/community/Boot-Repair) then rebooted my computer. My computer still didn't boot to the OS but now, every time I follow those same steps and reboot my computer it brings me back to this same account.

Secure boot is disabled The OS selection is on CSM and UEFI OS AHCI mode control is manual AHCI mode is disabled Fast BIOS mode is off PXE OPROM is off My system has a Solid State Drive (SSD)

My BIOS Version is P03RBV but i can't seem to find the UEFI version The only options i have for boot option priorities are UEFI:USB Flash MemoryPMAp and "disabled"

Please help, my computer has been like this for the past month.

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boot ubuntu live-disk,install gparted and upload its screenshot. –  Avinash Raj Dec 4 '13 at 4:23

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