Windows 8 and 8.1 Forums


Unable to Boot from USB

  1. #1


    Posts : 4
    Windows 8

    Unable to Boot from USB


    Hi EightForums,

    Tried looking through the threads but couldn't find one with my problem. I followed the tutorial on how to make usb bootable. I have done the following:

    - Used "Rufus" as per tutorial to make UEFI Bootable USB Flash Drive
    - used a software to test usb if bootable and it was.
    - Set Secure Boot off
    - Adjusted BIOS to boot usb (kingston) as primary.

    I try restarting and nothing happens. Please help.. thanks!

      My System SpecsSystem Spec

  2. #2


    Posts : 2,191
    Windows 8.1


    I try restarting and nothing happens. Please help.. thanks!
    Unless you have permanently changed your BIOS boot priorities to ensure the USB device is first boot, you will have to invoke the "boot menu" when the BIOS "splash screen" displays, and then select the USB device for a "one-time" boot option. So, look to the lower right corner for a menu prompt to do so. FYI, I have to use F11 on my ASRock and F12 on my Lenovo laptop. Good luck.
      My System SpecsSystem Spec

  3. #3


    Posts : 4
    Windows 8


    By permanently, do you mean if I go back to BIOS option and I see the USB as primary then it is permanently? If so, then yes.
    Even If I use Windows 8 Boot Menu option and select my USB to boot from, it doesn't do anything.
      My System SpecsSystem Spec

  4. #4


    Posts : 2,191
    Windows 8.1


    Then your USB device must not be configured to be recognized at boot. So, here's a good test to prove my theory:

    Go here and select "create a recovery drive" and follow the prompts.

    Click image for larger version

    This will guarantee that you have properly created same because "Windows knows" how to do it! Once done, test your new USB Recovery Drive and see if it is recognized via either of the previously mentioned methods.

    I also have to mention one other important factor that a USB drive formatted as NTFS will never might not be recognized as bootable.

    Do the test and let us know.
    Last edited by my2cents; 03 Nov 2013 at 06:32.
      My System SpecsSystem Spec

  5. #5


    Posts : 27
    Win 8 Pro (WMC) originally; updated to 8.1 prowmc through store


    @Vicent

    i assume you want to install windows 8 or windows 8.1 from usb; your pc/laptop is bios legacy boot or uefi boot?

    for legacy systems, I normally use a blank usb (for 8.1 i used 8gb usb3 Kingston); I format it in NTFS, copy the Bootmgr file and boot and sources folder (i don't use support tools and migration folders). I use Bootice (from within dos!, but you can use windows also) check if the bootrecord is Nt6.0 (iie it will boot bootmgr or ntldr); you can check with ipauly.com or

    Booooooooting ? View topic - [ BOOTICE: A poweful boot-related utility ] - v1.2.0.1

    then I restart the machine, press F10 or f12 (As the case may be) to select boot device option; and select the Kingston usb
    it will start installing windows without fail.
      My System SpecsSystem Spec

  6. #6


    Posts : 2,191
    Windows 8.1


    for legacy systems, I normally use a blank usb (for 8.1 i used 8gb usb3 Kingston); I format it in NTFS
    What do you use for UEFI systems?

    Here's an snapshot of the actual recovery drive created by Windows 8.1:

    Click image for larger version

    BTW, The above was automatically formatted/created on one of my Legacy installations.

    Click image for larger version

    However, based on your reported success with using an NTFS formatted USB dive for Legacy Boot Recovery,
    I will ammend my original statement accordingly.

    UEFI Bootable USB Flash Drive - Create in Windows


      My System SpecsSystem Spec

  7. #7


    Posts : 2,191
    Windows 8.1


    One more thing. Hre is my Windows 8.1 installation setup (on a USB drive) for Legacy or UEFI installations:

    Click image for larger version
      My System SpecsSystem Spec

  8. #8


    Posts : 5,592
    ME, XP,Vista,Win7,Win8,Win8.1


    Quote Originally Posted by vicentech View Post
    Hi EightForums,

    Tried looking through the threads but couldn't find one with my problem. I followed the tutorial on how to make usb bootable. I have done the following:

    - Used "Rufus" as per tutorial to make UEFI Bootable USB Flash Drive
    - used a software to test usb if bootable and it was.
    - Set Secure Boot off
    - Adjusted BIOS to boot usb (kingston) as primary.

    I try restarting and nothing happens. Please help.. thanks!
    Boot the DVD/USB in UEFI mode.

    Click image for larger version

    If installing Windows 8x64, no need to turn Secure Boot OFF.
      My System SpecsSystem Spec

  9. #9


    Posts : 27
    Win 8 Pro (WMC) originally; updated to 8.1 prowmc through store


    i don't have native efi systems; (though my acer has both efi and legacy boot options); I use efi emulators for booting into mac-os(hackintosh!)

    coming to legacy boot, I mentioned ntfs for the reason that I am using syspreped install.wim (from install.esd) which is now slightly bigger than 4gb; otherwise fat32 will do;

    I am enclosing snipshots (using snippingtool); (aside: the 8gb has exfat - its bootpartition is coded for clover for booting mac os; so when I use this for windows I use grub4dos to invoke bootmgr from the root

    the relevant snipshot is of 16gb usb, which has PBR for loading bootmgr or ntldr (whichever is found)

    regards
    neelakantanClick image for larger versionClick image for larger versionClick image for larger version
      My System SpecsSystem Spec

  10. #10


    Posts : 4
    Windows 8


    Quote Originally Posted by my2cents View Post
    Then your USB device must not be configured to be recognized at boot. So, here's a good test to prove my theory:

    Go here and select "create a recovery drive" and follow the prompts.

    Do the test and let us know.
    I think it works. Never used a recovery drive so not sure what to expect but once I restart my laptop it prompt me to select a language (which typically doesn't).

    Quote Originally Posted by neelakantanr View Post
    @Vicent

    i assume you want to install windows 8 or windows 8.1 from usb; your pc/laptop is bios legacy boot or uefi boot?
    Laptop is UEFI Boot. Sorry, I realize I did not give that detail. I am trying to downgrade from Windows 8 to Windows 7. Bought laptop with pre-installed Windows 8.

    [QUOTE=theog;302770]
    Quote Originally Posted by vicentech View Post

    Boot the DVD/USB in UEFI mode.



    If installing Windows 8x64, no need to turn Secure Boot OFF.
    How do I access the screenshot above? Does not look familiar.
    __________________________
    I tried the following:

    - Used Rufus (Option #1) and implemented Step 11 from Option #2.
    - Restart computer and prompts error along the lines of " Windows failed to start /efi/microsoft/boot/bcd
      My System SpecsSystem Spec

Page 1 of 2 12 LastLast
Unable to Boot from USB
Related Threads
Hi, recently I was trying to upgrade my Windows 8 Pro computer to Windows 8.1 Pro. But I had no working USB sticks so I thought I could make a NTFS partition into my hard drive and extract the Windows 8.1 Pro installation setup files on there. So when I restarted my computer, it booted up into the...
Have been checking different posts and sites for an answer to my problem and have found none that work. My machine is an Asus t200ta with Win 8.1 and uefi. I can turn off secure boot and change the boot order to boot from my external flash drive. When I go save settings my machine says "Preparing...
Unable to boot Windows 8 in General Support
Can't boot into my old Windows 8 install, any help MUCH MUCH appreciated! I had a windows 8 install on C: that was working fine. All the files still there...intact. Today I decided to install another version of win8 on my D: (duel boot) to test something out. After formatting D:, and...
Solved Unable to Change Boot Drive in Installation & Setup
I have a Dell Inspiron 7720 Win 8 x64 PC which includes UEFI (described in Microsoft link below). However, UEFI is accessed on Win 8 from Settings Charm > "Change PC Settings". This requires that you have booted the system already. In case of a main disk crash, you need to boot from another...
Hello, I had some problems with Ubuntu, and wanted to recover my Windows 8 MBR, so that I can boot back into it, and not a corrupted version of Grub2. Anyway, I burned an iso for the Windows 8 recovery disk, and the disk is fine since it works on another computer. However, it doesn't work on the...
Unable to boot to disc in Installation & Setup
So I was having problems getting to the boot menu of my Lenovo G580 laptop earlier. I figured out how to get the boot menu - But my only options are hard drive, LAN v4 and LAN v6 boot - Nothing about a disc. So I went into the BIOS boot priority menu and set disk to #1 - It still booted to my...
unable to get boot option at startup in Installation & Setup
Dear Friends, I have installed windows 8 on a windows 7 PC on a separate hard disk. But I am unable to get boot option at startup. Every time I have to select windows 8 boot disk from bios boot menu. Please help me.
Eight Forums Android App Eight Forums IOS App Follow us on Facebook