Windows 10: Converting using MBR2GPT failure

Hello,I'm attempting to upgrade my Windows 10 device to Windows 11. I saw that I need to have a GPT partition style somewhere and could obtain it by converting my MBR to a GPT.When I ran the validate it shows a success but the convert shows a failure Cannot fin droom for EFI.Please Help!

:)

 

MBR2GPT fails to convert to GPT despite resizing partitions.

Shutdown and detach all other drives (SATA or power cable)
As @SIW2 suggested, boot from a Win 10 installation drive, launch a CMD window (Shift+F10) and run:
MBR2GPT /validate

and

MBR2GPT /convert

 

MBR2GPT failure

Hello everyone

i come here with an issue apparently nobody has (or i don't know how to google it ^^').

i need to bitlock a lot of computers and i'm using an SCCM task sequence to do so. A majority of our computer are configured as legacy BIOS and MBR.

In order to bitlock, i need to convert these to GPT and change the BIOS to UEFI.

so i use the command "MBR2GPT /convert /allowfullos" and then change the BIOS to UEFI.

but when i reboot, the network card stops to respond and when i try to ping anything (8.8.8.8 for instance), i get a ping failure message.

same for Eth and Wifi.

the only way to fix it is to uninstall the cards in the device manager and reboot.

do someone knows where this problem comes from ?

thank you very much

 

mbr2gpt

MBR2GPT: Attempting to convert disk 0
MBR2GPT: Retrieving layout of disk
MBR2GPT: Validating layout, disk sector size is: 512 bytes
Disk layout validation failed for disk 0