Windows 8 and 8.1 Forums


Trying to change over to GPT from MBR with recovery

  1. #11


    Raleigh, NC
    Posts : 33
    Windows 10 / Linux Mint 17.2 / OS X


    Quote Originally Posted by KYHI View Post
    Did you wait until windows completed until you got to User Setup ?

    You stated you have 4 partitions (WinRE tools) (System) (Reserved) (Windows)

    restore ONLY the OS partition

    If that does not boot after marcium restore - Boot from setup media and from the "Install" screen
    press Shift+F10 to bring up a command prompt and Type >

    C:\Windows\System32\bcdboot C:\Windows

    Assuming your OS partition is assigned C - that will write the boot files to the System Partition (Efi Partition)

    Be careful with the Marcium restore - I believe it selects the Boot partition in addition to the selected partition
    Yeah - it also automatically selects to write over the boot record. This is understandable since it defaults to assuming you are recovering from a non-bootable drive.

    The GPT setup exactly as it should have. When I restored the image, the GPT still looked fine - only that the restored image was now in the correct location. From what I could tell, nothing else changed. Apparently I was wrong.

    Im going to try booting from the 8.1 disk and doing the command as you suggested just for fun. I have a feeling I'll be reinstalling Windows again though, to get the GPT straightened out.

    There wasn't many options when doing the restore. You choose the image set (which was my MBR Windows partition image that I made from the C:\ drive) and your restore DISK. It does NOT have a selection to restore to an individual partition that I could see. I assumed it was just smart and was going to figure that out on its own. When I made the original backup image, I chose the windows partition ONLY. If it ended up sucking the boot info with it, there was no indication. I looked through all of those advanced options as well, and didn't see anything pertaining to the boot record.

    Thanks for for the help so far. Worse case scenario - I reinstall everything. But I'm going to do everything I can do to get this to work, if nothing other than to experience the process and share this info with others.

      My System SpecsSystem Spec

  2. #12


    Posts : 2,690
    Windows 3.1 > Windows 10


    It does NOT have a selection to restore to an individual partition that I could see.
    De-select whole disk from restore image and drag OS partition from restore image to correct OS partition on disk

    As long as you got 4 gpt partitions and an OS on the OS partition - no need to reinstall..

    I think you may have restored the image in-correctly and I'm no sure what is on what partition
      My System SpecsSystem Spec

  3. #13


    Raleigh, NC
    Posts : 33
    Windows 10 / Linux Mint 17.2 / OS X


    FYI - I just tried to rewrite the boot info from the windows media DVD as you suggested in your last post - "failure when attempting to copy boot files."

    I can go to the c drive and see all of the restored info. I can navigate through the directories and everything is there. It's just the boot.

    I may have to reinstall. Something strange is going on with the boot. I'm going to see what I can do with it. I'll check out the file you provided. Thanks!
      My System SpecsSystem Spec

  4. #14


    Raleigh, NC
    Posts : 33
    Windows 10 / Linux Mint 17.2 / OS X


    I seem to have some performance issues, but I got it restored and it boots!

    I followed the instructions that we spoke of earlier, and I realized that on my first attempt with Macrium I did not do things correctly. This time I did, but it still wouldn't boot. I got an error message about the windows.efi. It apparently didn't like the old MBR data with the new efi file. So, I found an explanation at this site How to repair the EFI Bootloader in Windows 8 - fixedByVonnie and was able to correct the problem by reloading the boot record and correcting the BCD.

    I think I am solved here, but like I said I think I have some performance issues or other strange things going on. If I can come up with some reasons, I may be back to try and get more help.

    Thanks!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
      My System SpecsSystem Spec

  5. #15


    Raleigh, NC
    Posts : 33
    Windows 10 / Linux Mint 17.2 / OS X


    I also wanted to add that my BIOS now sees 2 identical drives on the same controller. LOL Not sure what that's all about, unless it has something to do with recreating the boot and BSD. Everything is working ok.
      My System SpecsSystem Spec

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Trying to change over to GPT from MBR with recovery
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