Windows 8 and 8.1 Forums


How to boot new laptop from external USB drive ?

  1. #1


    Posts : 87
    Multi-Boot-PCs W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64

    How to boot new laptop from external USB drive ?


    Someone I help remotely via Teamviewer bought a Win 8 Lenovo laptap and asked me for help getting it set up.
    It's a Lenovo - IdeaPad Yoga 2 Pro Ultrabook with Win 8.1 preinstalled
    Lenovo IdeaPad Yoga 2 Pro Ultrabook 2in1 13.3" TouchScreen Laptop 8GB Memory Yoga 2 Pro-59386391 - Best Buy

    She also bought an external USB DVD burner.
    I created a bootable Macrium Rescue disc so we can restore from a Backup Image if needed.
    The laptop won't boot from the USB DVD drive and gets a "blocked by the current security policy" error.

    How can I boot from an external USB drive?
    Is there a setting in BIOS that will allow booting from the DVD?

    I found this thread in the Lenovo forum for a different model that mentions "turn off secure boot", if it's an available option.
    Secure Boot Problem - Lenovo Community

    I found this Lenovo BIOS simulator but I don't see a listing for a Yoga 2 Pro, so I'm not sure what settings are possible in this laptop.
    Lenovo Partner Portal | BIOS Simulator Matrix

    Thanks in advance,
    David

      My System SpecsSystem Spec

  2. #2


    Posts : 37
    Windows 8.1 Pro


    Hello, please check out this lovely tutorial.

    Create Bootable USB or DVD with Windows 8 ISO

    Also, to boot from it; you'd have to go into the BIOS settings and change the boot priority to boot the USB or DVD first.
      My System SpecsSystem Spec

  3. #3


    Posts : 87
    Multi-Boot-PCs W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64


    Thanks ErraticFox for the link.

    That tutorial is for creating a bootable USB flash drive or DVD.
    I don't see where it explains how to use a Bootable USB drive that is blocked by "security policy".

    I did find how to use the Novo button to be able to select the DVD drive to boot from, it just won't boot
      My System SpecsSystem Spec

  4. #4


    Posts : 37
    Windows 8.1 Pro


    Quote Originally Posted by DavidE View Post
    I don't see where it explains how to use a Bootable USB drive that is blocked by "security policy".
    Did you not change the boot priority to the DVD from the BIOS? I'm not really great with Lenovo so I would not know what the Novo button is. :\
      My System SpecsSystem Spec

  5. #5


    Posts : 87
    Multi-Boot-PCs W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64


    The Novo button basically allows a "One time boot option" so you can select the device to boot from for that boot up.
    It's not a problem selecting the DVD drive as the boot device, it just won't boot from the DVD drive because of "security policy".

    I need to know how to remove this "security policy" restriction, if it's possible.
      My System SpecsSystem Spec

  6. #6


    Posts : 1,875
    Windows 10 Pro Prieview x64


    Quote Originally Posted by DavidE View Post
    I found this thread in the Lenovo forum for a different model that mentions "turn off secure boot", if it's an available option.
    That is you issue. From Lenovo forums it appears it should be in the BIOS under security tab - turn off secure boot. I have legacy BIOS so can't check it though.
      My System SpecsSystem Spec

  7. #7


    Posts : 87
    Multi-Boot-PCs W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64


    I'm helping remotely via Teamviewer so I can't see the BIOS setup.
    The person I'm helping has never used BIOS setup before.
    My PCs are older, so I've never used the "new EFI" BIOS, and I don't know what's possible.
    I just don't want to tell her to start making BIOS changes that may cause more problems than they solve.

    So, If she has a "turn off secure boot" option, I should tell her to turn it off?
    And hopefully that would fix this issue without causing more problems.
      My System SpecsSystem Spec

  8. #8


    Posts : 660
    windows 8.1


    Found this on the lenovo forum :

    Don't know if it also apply for your lenovo model.



    Re: Can not enter in BIOS Lenovo












    If your laptop came pre installed with windows 8 (8.1) there's a different way to enter the bios now you can't access it by pressing F2 etc. anymore if you follow this link it explains how.

    http://www.makeuseof.com/tag/how-to-access-the-bio​s-on-a-windows-8-computer/
    Last edited by lifetec; 20 Mar 2014 at 18:44.
      My System SpecsSystem Spec

  9. #9


    Posts : 1,875
    Windows 10 Pro Prieview x64


    Quote Originally Posted by DavidE View Post
    So, If she has a "turn off secure boot" option, I should tell her to turn it off?
    Yes
      My System SpecsSystem Spec

  10. #10


    Posts : 87
    Multi-Boot-PCs W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64


    @adamf - She works late, so I'll see if she can find the "turn off secure boot" option next time I help her with this.

    @lifetetc - That is an interesting article. A lot of changes to learn about and understand.

    fwiw, with this Lenovo laptop you can get to BIOS setup using the Novo button.
    It's a physical button on the right side of the laptop.
    These are snips from the Lenovo User Guide:

    Attachment 37910

    Click image for larger version
      My System SpecsSystem Spec

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