Windows 10: Convert MBR disk to GPT via uefi shell?

Discus and support Convert MBR disk to GPT via uefi shell? in Windows 10 Drivers and Hardware to solve the problem; Hello! I did something terrible to my tablet, I converted the partition from GPT to MBR in a desperate try to install windows 7. Now tablet is... Discussion in 'Windows 10 Drivers and Hardware' started by alesyt0h, Sep 6, 2015.

  1. alesyt0h Win User

    Convert MBR disk to GPT via uefi shell?


    Hello!

    I did something terrible to my tablet, I converted the partition from GPT to MBR in a desperate try to install windows 7.

    Now tablet is not reading any usb I plug in, and of course I cannot format disk again because it doesn't recognize anything, always booting at uefi shell.

    Anything I can do to fix it?

    Thank you so much!

    :)
     
    alesyt0h, Sep 6, 2015
    #1

  2. Windows 10 Security Update Bricked my AMD based PC and unable to re-install Windows 10 Pro due to GPT partition

    With this in mind I could convert the disk to MBR, then install Windows and all applications.

    NOT

    If he has UEFI GPT, you are not converting to a BIOS based PC with a MBR.
     
    seahawks65, Sep 6, 2015
    #2
  3. Need to install windows 7 professional after a month

    You can go to bios to check boot mode. if it is Legacy mode, then convert
    disk to MBR partition table. if it is EFI or UEFI mode, then convert the disk to GPT disk. you can also change the boot mode to fix this.

    The conversion with Windows built in tool will delete everything on your disk including recovery partition.You can use diskpart.exe or disk management to convert GPT to MBR, but you need to delete this disk to make it shown
    as unallocated space. therefore, you'd better backup the needed information before doing it.

    If you want to convert between GPT and MBR without affecting the OS, you need to use third party software, such as AOMEI Partition Assistant. Convert Disk between MBR and GPT in Windows 10 without Data Loss
     
    Youngwarlord, Sep 6, 2015
    #3
  4. Convert MBR disk to GPT via uefi shell?

    try entering your tablets bios (you will need to check your tablet manufacures instructions usualy on their website for how to access the bios)
    and change from UEFI to legacy
    iirc usb devices will only boot from legacy bios.. at least mine does *Tongue

    you can change the disk type from MBR to GPT using the commandline (DOS) using diskpart assuming you can either boot to windows or the windows recovery environment from USB\DVD see here (iirc this works with w7 and up)
    Change a Master Boot Record Disk into a GUID PartitionTable Disk
    once done switch back to UEFI

    imho if your not sure what your doing you may be better off wiping the disks and starting again
     
    finglonger, Sep 7, 2015
    #4
  5. alesyt0h Win User
    Thanks for reply!!

    But my tablet don't have a legacy option :/.....

    I can't enter on windows, neither on recovery, bios always booting the uefi shell, and every usb I plug (with windows on it) tried w7,w8,w10 .. not recognizing any usb. *Sad
     
    alesyt0h, Sep 7, 2015
    #5
  6. TV2
    TV2 Win User
    It would be helpful to know the brand and model number of your tablet.
     
  7. alesyt0h Win User
    The brand is spanish, is UNUSUAL 10W.
     
    alesyt0h, Sep 8, 2015
    #7
  8. Convert MBR disk to GPT via uefi shell?

    Unusual Tech site
    UNUSUAL 10W - Comodidad y tecnologÃ*a 2 en 1

    There is a recovery image (I think - Mi español no es muy bueno.) in the downloads section at the bottom of the page.
    10W - Imagen de recuperación de sistema


    Convert MBR disk to GPT via uefi shell? [​IMG]

    The trick is getting it on your tablet - is there any data you need on the device?
     
    Slartybart, Sep 8, 2015
    #8
  9. You might try using Rufus to create Windows Install Media (Win7, Win8, or Win10) from an ISO. Create the flash drive as a GPT / UEFI boot.


    Convert MBR disk to GPT via uefi shell? [​IMG]


    I don't know if that will get you to the machine or not, but it's a thought.
     
    Slartybart, Sep 8, 2015
    #9
  10. alesyt0h Win User
    Fixed! I upgraded my bios and now USB are recognited !

    Thank you all!
     
    alesyt0h, Apr 5, 2018
    #10
Thema:

Convert MBR disk to GPT via uefi shell?

Loading...
  1. Convert MBR disk to GPT via uefi shell? - Similar Threads - Convert MBR disk

  2. How to convert an MBR disk into a GPT disk

    in Windows 10 Installation and Upgrade
    How to convert an MBR disk into a GPT disk: why does windows 10 32 bit(x86) clean install as mbr when i pre-format the hard drive as gpt? is there a solution or is that the default and only option for installation? i've contacted asus who makes my motherboard to check for uefi details and everything i can think of...
  3. convert MBR to GPT disk

    in Windows 10 Installation and Upgrade
    convert MBR to GPT disk: DISKPART> list disk Disk ### Status Size Free Dyn Gpt -------- ------------- ------- ------- --- --- Disk 0 Online 465 GB 0 B Disk 1 Online 7633 MB 0 B DISKPART> list disk Disk ### Status Size...
  4. Convert 1.5TB disk from MBR to GPT

    in Windows 10 Drivers and Hardware
    Convert 1.5TB disk from MBR to GPT: I want to convert a 1.5TB MBR disk to a GPT disk. My other two disks are GPT so I'd like them all to be. No special reason, just because. When I tried mbr2gpt /validate /disk:2 I get ERROR: MBR2GPT can only be used from the Windows Preinstallation Environment. Use...
  5. Converting W10 System Disk from MBR to GPt

    in Windows 10 Drivers and Hardware
    Converting W10 System Disk from MBR to GPt: For some reason my W10 System Disk (SSD) is set up as an MBR Disk. My separate Data disk (HDD) is GPT. I know how to convert the System Disk to GPT using Minitools Partition Wizard. If I do that to the SSD will I loose the W10 installation? And is there any advantage to doing...
  6. Converting Windows 10 MBR Disk to GPT

    in Windows 10 Drivers and Hardware
    Converting Windows 10 MBR Disk to GPT: I have two internal disks and one external on my desktop. One of the internals is a GPT 1Tb disk for data and archive storage. The other is an MBR Windows 10 system disk and the external one is a 1TB USB. The system disk contains a System Reserved partition and the Windows 10...
  7. how to convert MBR to GPT?

    in Windows 10 Installation and Upgrade
    how to convert MBR to GPT?: hi I have a problem in installing Windows 10 from usb drive. Error is "windows cannot be installed to this disk. the selected disk has MBR partition table. on efi system windows can only installed to GPT disk" I have formatted without aware this issue. I have few...
  8. utility to convert MBR disk with Windows partitions to GPT?

    in Windows 10 Installation and Upgrade
    utility to convert MBR disk with Windows partitions to GPT?: Does this utility exist? I've tried Minitool's free version, which claims to support MBR to GPT conversion, but I got a warning that the disk would not be bootable. I downloaded a trial of the paid Easeus partition manager and when I tried that conversion, I got an...
  9. Convert GPT Disk to MBR Disk in Windows 10

    in Windows 10 Tutorials
    Convert GPT Disk to MBR Disk in Windows 10: How to: Convert GPT Disk to MBR Disk in Windows 10 How to Convert GPT Disk to MBR Disk in Windows 10 *YouTube video player 1. If you haven't already, you will need to download and install MiniTool Partition Wizard Free Edition. 2. Open MiniTool Partition Wizard, and...
  10. Convert MBR Disk to GPT Disk in Windows 10

    in Windows 10 Tutorials
    Convert MBR Disk to GPT Disk in Windows 10: How to: Convert MBR Disk to GPT Disk in Windows 10 How to Convert MBR Disk to GPT Disk in Windows 10 GPT (GUID Partition Table) and MBR (Master Boot Record) are two different partition styles that can be used for a disk. MBR disks use the standard BIOS partition...

Users found this page by searching for:

  1. uefi shell change gpt

    ,
  2. Convert mbr to gpt from efi shell