MBR2GPT and cannot find OS partition(s) in disk 0

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  • TheBreadMuncher
    PCHF Member
    • Jun 2023
    • 1

    #1

    MBR2GPT and cannot find OS partition(s) in disk 0

    Hello,
    I was trying to turn my system into GPT so I can turn it into UEFI but that has given me a whole host of issues. the MBR2GPT command doesnโ€™t work for me so I followed the steps trying to fix that such as Best Way to Fix โ€œMBR2GPT Cannot Find OS Partitionโ€ in Windows 10 . I can not assign a letter to par 2 because that is my boot area and the code โ€œSources>bcdedit /store B:\boot\bcd /enum allโ€ doesnโ€™t work. I canโ€™t find any other troubleshoots and Iโ€™m tired of running into error after error.

    Hoping someone can help.
    Many thanks,
    TBM
  • Bruce
    PCHF Moderator
    • Oct 2017
    • 10702

    #2
    in case you go and inavertedly change something you canโ€™t undo, do you have a backup of your files, and/or a snap shot of the system?

    Comment

    • PeterOz
      PCHF Technical Response Team
      • Mar 2021
      • 4191

      #3
      Convert MBR to GPT

      NB this will wipe all data from the drive
      Boot from Win 10 install usb
      When you get to the startup screen (pic attached)
      Press Shift + F10 key
      you should get a X:> prompt
      What is in blue you type in red you do
      e.g Enter press enter key

      [COLOR=rgb(41, 105, 176)]Diskpart [COLOR=rgb(184, 49, 47)]enter

      [COLOR=rgb(41, 105, 176)]list disk [COLOR=rgb(184, 49, 47)]enter

      [COLOR=rgb(41, 105, 176)]Select disk n [COLOR=rgb(184, 49, 47)]enter (n=the disk you wish to convert)

      [COLOR=rgb(41, 105, 176)]clean [COLOR=rgb(184, 49, 47)]enter

      [COLOR=rgb(41, 105, 176)]convert gpt [COLOR=rgb(184, 49, 47)]enter

      [COLOR=rgb(41, 105, 176)]exit [COLOR=rgb(184, 49, 47)]enter

      [COLOR=rgb(41, 105, 176)]exit [COLOR=rgb(184, 49, 47)]enter

      [ATTACH type=โ€œfullโ€ alt=โ€œ1686279846581.pngโ€]12193[/ATTACH]
      You will have to reinstall windows and any programs you are using.

      Reinstall Win 10 Fresh Install

      Download the win 10 tool run it to recreate the flash drive โ€“ Must be minimum 8GB

      Download Windows 10

      Watch this video
      How To Install Windows 10 From USB - YouTube

      In the video at 2:35 Where to install Windows. Highlight each partition and delete.

      Then install on the unallocated space.

      In the video at 2:54 you will notice it restarts the computer.
      When you are doing this and you get to that point Remove the usb stick whilst it is restarting.
      Also if you want to setup a local account instead of logging in with a Microsoft account
      Turn off your wireless network and or remove the network cable.
      This point is 3.32 in the video - Choose I donโ€™t have internet.
      If you want to log in with a Microsoft account then leave the network as is.

      Before doing any install, it is a good idea to go to the support page for your system. Download the drivers you are going to need i.e. chipset, sound, video, wireless, etc. Whilst Win10 has a lot of native drivers, Microsoft drivers are designed for ease of use and are NOT designed for any type of performance. Store these drivers on another usb or you can even just make a folder on your install usb when you are finished making the install usb. Copy the drivers into that folder.

      When you are finished with the Windows install, then install your drivers.

      [ul]
      [li]Chipset or Motherboard[/li][li]Sata or hard drive[/li][li]Video adapter[/li][li]Network interface card (NIC)[/li][li]Audio[/li][li]Touchpad[/li][li]Any other hardware drivers needed for your particular model.[/li][/ul]
      Reboot after installing the drivers[/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR][/COLOR]

      Comment

      • Rustys
        PCHF Member
        • Jul 2016
        • 7862

        #4
        abandoned closed

        Comment

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