Windows 10: Changing W10 MBR to GPT - but it wont let me log in with my microsoft credentials

I'm following these instructions:https://www.windowscentral.com/how-convert-mbr-disk-gpt-move-bios-uefi-windows-10recovery - restart - troubleshoot - command promptStep 8: Select your administrator account and sign in if applicable.Step 9: Type the following command to validate the drive's requirements and press Enter:mbr2gpt /validateStep 10: Type the following command to convert the drive from MBR to GPT and press Enter:mbr2gpt /convertHOWEVER - at step 8 it refuses to accept the password for my microsoft account.I've seen this:https://answers.microsoft.com/en-us/windows/forum/all/password

:)

 

clone MBR HD to bootable GPT partition?

Hi,

1. You cannot convert mbr to gpt without data loss. otherwise, you can follow directions here:

FROM WINDOWS RECOVERY CONSOLE:

To change a master boot record disk into a GUID partition table disk using a command line

• 
  Back up or move the data on the basic master boot record (MBR) disk you want to convert into a GUID partition table (GPT) disk.
  
• 
  Open an elevated command prompt (right-click Command Prompt, and then click Run as Administrator) and type diskpart. If the disk does not contain any partitions or volumes, skip to step 6.
  
• 
  At the DISKPART prompt, type list disk. Make note of the disk number you want to convert.
  
• 
  At the DISKPART prompt, type select disk <disknumber>.
  
• 
  At the DISKPART prompt, type clean.
  

2. I'd suggest converting your vista drive to a virtual machine, load that up on your windows 10 system and use a program like virtualbox to run it.

 

mbr to gpt change without data lost during Windows installing

Hi Gurjar,

Thank you for posting in Microsoft Community.

To assist you better, I suggest you to answer the below questions.

• What is the make and model of your PC?
• What is the error you are getting as you have mentioned above?
• Was there any Disk partition while converting from MBR to GPT?

Please post us back with more information to help you better.

 

Convert only one partition on the disk from MBR to GPT

Follow the steps listed here on using GPTgen. He also lists how to create and restore backups.

Converting MBR to GPT without deleting your partitions