1.    04 Oct 2015 #1

    Pendrive does not boot on my Lenovo Laptop with windows 10


    I have one Sandisk USB 2 OTG pendrive which can work on mobile and PC/Laptop. When I plug into the port the message pops up as sd/mmc card.
    I have recently burned on it one iso with Rufus 2.4 with multi bootable OS of 7, 8.1 and 10 bootable. I have enabled usb as the first bootable device into bios but it does not boot on my laptop. The message that i got is "efi usb device (generic sd/mmc) has been blocked by the current security policy".I have burned the usb using GPT as partitioning scheme with Uefi enabled. Hence security should not have been the cause.
    Could it be that the usb device is sd/mmc and not actual pendrive. I have purchased it as USB OTG pendrive from amazon. Capacity is 16 gb.
    Could it be possible that because od SD/MMC drive -it does not support booting.
    Please advice me what is wrong with my device or anything else.
    Ashok
      My ComputerSystem Spec
  2.    04 Oct 2015 #2
    Join Date : Jul 2015
    Posts : 9,552
    Windows 10 Pro

    It probably is because the OTG drive is being recognized as SD/MMC - most computers will not boot from SD/MMC. I would use a regular USB flash drive.
      My ComputerSystem Spec
  3.    04 Oct 2015 #3

    Mr NavyLCDR I also had some vague idea about this notion.
      My ComputerSystem Spec
  4.    04 Oct 2015 #4
    Join Date : Jul 2015
    Posts : 3,813
    10 Pro

    You could also try turning off secure boot in the bios... Secure Boot Problem - Lenovo Community
      My ComputerSystem Spec
  5.    04 Oct 2015 #5

    Quote Originally Posted by halasz View Post
    You could also try turning off secure boot in the bios... Secure Boot Problem - Lenovo Community
    But turning off secure boot is only required when the bootable OS is created with MBR partitioning scheme. My laptop has Windows 10 and the Laptop supports GPT system partitioning scheme and by default GPT supports only UEFI. My OS on OTG USB was prepared with these two parameters kept in mind - GPT & UEFI through Rufus 2.4. Everything was well thought and executed but still does not work. I think i will buy another pendrive and check whether that supports booting.
    Ashok
      My ComputerSystem Spec
  6.    05 Oct 2015 #6

    Quote Originally Posted by halasz View Post
    You could also try turning off secure boot in the bios... Secure Boot Problem - Lenovo Community
    Mr halasz just for trial sake, I did as you suggested. Before disabling the Secure Boot in Bios, I have once again prepared the OTG USB with Windows 7,8.1 and 10 and after that I disabled the secure boot in bios and restarted my Laptop. This time it booted into the installation mode and I could see all three OSes there on the screen. Thanks for insisting for disabling the Secure Boot. It atleast proved that My OTG USB is good for making Bootable Pendrive with OS or anyother software. Thanks.
    Ashok
      My ComputerSystem Spec
  7.    05 Oct 2015 #7
    Join Date : Jul 2015
    Posts : 9,552
    Windows 10 Pro

    Glad it worked out for you!
      My ComputerSystem Spec

 


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