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

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TheBreadMuncher

TheBreadMuncher

PCHF Member
Jun 6, 2023
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#1
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 doesn't work for me so I followed the steps trying to fix that such as https://www.diskpart.com/gpt-mbr/mbr2gpt-cannot-find-os-partition-7201.html. I can not assign a letter to par 2 because that is my boot area and the code "Sources>bcdedit /store B:\boot\bcd /enum all" doesn't work. I can't find any other troubleshoots and I'm tired of running into error after error.

Hoping someone can help.
Many thanks,
TBM
 
#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

Diskpart enter

list disk enter

Select disk n enter (n=the disk you wish to convert)

clean enter

convert gpt enter

exit enter

exit enter

1686279846581.png

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 – Must be minimum 8GB

https://www.microsoft.com/en-au/software-download/windows10


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 don'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.

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