Error: This tool can only be run on systems booted using PC/AT BIOS.


  1. Posts : 15
    Windows 7 Ultimate x64
       #1

    Error: This tool can only be run on systems booted using PC/AT BIOS.


    I followed this tutorial https://www.youtube.com/watch?v=nZVgInbhTAw to make my bootable Windows 7 USB.

    I am getting this error: This tool can only be run on systems booted using PC/AT BIOS. This system was booted using EFI or some other firmware type.

    Maybe this is my main problem my USB can not boot on my new Lenovo? I created thread here.

    What I should do?
      My Computer


  2. Posts : 6,285
    Windows 10 Pro X64
       #2

    Follow these directions: How to Create a Bootable Windows 7 Installation USB Flash Drive

    I prefer Option Two, using Rufus.

    Do you have a Windows 7 ISO or are you starting with a Windows 7 DVD? If DVD then use ImgBurn to create a ISO file from the DVD then follow Option Two.
      My Computer


  3. Posts : 15
    Windows 7 Ultimate x64
    Thread Starter
       #3

    Ztruker said:
    Follow these directions: How to Create a Bootable Windows 7 Installation USB Flash Drive

    I prefer Option Two, using Rufus.

    Do you have a Windows 7 ISO or are you starting with a Windows 7 DVD? If DVD then use ImgBurn to create a ISO file from the DVD then follow Option Two.
    I downloaded official ISO image from the Internet. I found on this forum website. Will try to create UEFI bootable with Rufus. Prior I used default option with Rufus and I couldn't install. Also used different methods like UltraIso, Microsoft USB tool which had problem to finish process until the end etc.
      My Computer


  4. Posts : 15
    Windows 7 Ultimate x64
    Thread Starter
       #4

    I used Rufus and this time I selected "GPT partition scheme for UEFI", but still same problem. I changed in BIOS options to boot from UEFI and got this weird error: "EFI USB device has been blocked by the current security policy".

      My Computer


  5. Posts : 15
    Windows 7 Ultimate x64
    Thread Starter
       #5

    I was able to install Windows 7. Check here for more info.
      My Computer


 

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