Convert MBR to GPT - MBR2GPT fails with error 0x00000000

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  1. Posts : 14
    Windows 10 Pro
    Thread Starter
       #21

    Megahertz said:
    Open a CMD window as administrator and type:

    reagentc /enable
    reagentc /info
    "The windows RE image was not found".
      My Computers


  2. Posts : 4,539
    several
       #22

    put a copy of winre.wim and reagent.xml in your \windows\system32\recovery folder

    if you havent got them to hand you can use these for x64 22h2.zip

    if an .xml is already there, overwrite it with the one in the zip

    after you have copied those in you can do

    reagentc /enable
      My Computer


  3. Posts : 14
    Windows 10 Pro
    Thread Starter
       #23

    Megahertz said:
    Open a CMD window as administrator and type:

    diskpart
    select disk 0
    list part (take note of the Samsung Recovery partition number)
    select part n (replace n with the partition number identified above)
    detail part
    exit
    SIW2 said:
    ...
    too late to check the samsung_rec partition id now. Had to be done before converting, now we will never know what it was. Of course after converting the disk with a 3rd party tool it now shows as ms basic data partition.
    Here's the diskpart detail info from the original disk - for the SAMSUNG_REC partition:
    Code:
    DISKPART> detail part
    
    Partition 4
    Type  : 27
    Hidden: No
    Active: No
    Offset in Bytes: 476779118592
    
      Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
      ----------  ---  -----------  -----  ----------  -------  ---------  --------
    * Volume 3         SAMSUNG_REC  NTFS   Partition     32 GB  Healthy    Hidden
    So I guess the original Samsung_Rec partition was type 27?

    - - - Updated - - -

    SIW2 said:
    put a copy of winre.wim and reagent.xml in your \windows\system32\recovery folder

    if you havent got them to hand you can use these for x64 22h2.zip

    if an .xml is already there, overwrite it with the one in the zip

    after you have copied those in you can do

    reagentc /enable
    Thanks for the file. Looking at it now, I see only two files; it has winrec.wim and ReAgent.html; no xml file. The folder on my win10 machine that I'm working on has two files in that folder - ReAgent.xml, and ReAgent_Merged.xml1.

    Out of curiosity, how does this 'work'; that is, do the contents of \windows\system32\recovery get moved to another partition by some process? I don't see the winrec.wim file anywhere on any system.
      My Computers


  4. Posts : 18,428
    Windows 11 Pro
       #24

    Use a third party partitioning program like MiniTool Partition Wizard Free to shrink you C: drive partition by 500 MB with the free space at the right end of the partition. Then try mbr2gpt again. You might have an unmovable file at the end of your C: drive partition which would cause mbr2gpt to not be able to shrink C: drive to make room for the ESP.
      My Computer


  5. Posts : 14
    Windows 10 Pro
    Thread Starter
       #25

    Steerpike58 said:
    ...

    Thanks for the file. Looking at it now, I see only two files; it has winrec.wim and ReAgent.html; no xml file. The folder on my win10 machine that I'm working on has two files in that folder - ReAgent.xml, and ReAgent_Merged.xml1.

    Out of curiosity, how does this 'work'; that is, do the contents of \windows\system32\recovery get moved to another partition by some process? I don't see the winrec.wim file anywhere on any system.
    My apologies - on the temporary machine I was using to do the download, file extensions were turned off and the xml file was being reported as an 'html document'... so the xml file is there. Of course :). I'm still curious to know how the wim file gets used; what process migrates it to another partition. Thanks!
      My Computers


  6. Posts : 4,539
    several
       #26

    reagentc moves them and adds the recovery sequence to the bcd store. It will probably create %systemdrive%\recovery\windowsre
      My Computer


  7. Posts : 14
    Windows 10 Pro
    Thread Starter
       #27

    Ghot said:
    ...
    Now you just need to start using backup software (if you aren't already), then you don't "need" a Recovery Partition.

    Macrium Reflect and Bootable Rescue Media, pictures... | Windows 11 Forum
    ....
    Thanks for all the help. I've been using Acronis forever, but it's getting long in the tooth now so I will jump to Macrium Reflect.
    Edit To Add: I just now read that Macrium is no longer free. I don't mind buying the software, but - will the single-system license allow me to build a standalone bootable USB stick (or CD?) and boot to that stick/CD, and do backups and restores? I tend to prefer to do backups completely standalone, not from 'within' the OS. And by doing so, I presume I can use that standalone environment without regard to any 'license' tied to a machine?
    Last edited by Steerpike58; 15 Mar 2023 at 01:08.
      My Computers


  8. Posts : 23,140
    Win 10 Home ♦♦♦19045.4291 (x64) [22H2]
       #28

    Steerpike58 said:
    Thanks for all the help. I've been using Acronis forever, but it's getting long in the tooth now so I will jump to Macrium Reflect.
    Edit To Add: I just now read that Macrium is no longer free. I don't mind buying the software, but - will the single-system license allow me to build a standalone bootable USB stick (or CD?) and boot to that stick/CD, and do backups and restores? I tend to prefer to do backups completely standalone, not from 'within' the OS. And by doing so, I presume I can use that standalone environment without regard to any 'license' tied to a machine?


    Yes to all.
    I do backups from within Windows and restores from the bootable media, myself.
    The single license is also... lifetime.


    Quickie guide...

    Macrium Reflect and Bootable Rescue Media, pictures... | Windows 11 Forum
      My Computer


  9. Posts : 18,428
    Windows 11 Pro
       #29

    Looks like my suggestion is being ignored....
      My Computer


  10. Posts : 23,140
    Win 10 Home ♦♦♦19045.4291 (x64) [22H2]
       #30

    NavyLCDR said:
    Looks like my suggestion is being ignored....
    OP already succeeded with the conversion. Post #12
      My Computer


 

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