Windows 8 and 8.1 Forums


Drive no longer boots after converting to Dynamic

  1. #11


    Posts : 2,690
    Windows 3.1 > Windows 10


    I've used partition master for years - never made the mistake of converting to dynamic disk - so that option was never needed..

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  2. #12


    I'm not sure I would call it a mistake converting as in order to use mirroring (RAID 1), which I need, the drives have to be dynamic. I was very paranoid about the potential for losing data or not being bootable so as I mentioned posted on technet at Microsoft and was assured it wouldn't be a problem, howver they were obviously wrong.
    Last edited by jackdup; 07 Feb 2015 at 23:54.
      My System SpecsSystem Spec

  3. #13


    Posts : 2,690
    Windows 3.1 > Windows 10
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  4. #14


    Followed the directions on that page and when I select convert to basic I get a message saying EFI/MSR partition will lost after conversion if they are existed on GPT disk. Are you sure to continue? Not exactly sure what that means.

    Also finally created a CD with the ISO posted on the sevenforums tutorial however get the same message as just running the program from within Windows.
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  5. #15


    Posts : 2,690
    Windows 3.1 > Windows 10


    what happened with your RAID setup? Did you set the BIOS for raid? do you have intel storage manager installed?

    not sure how the conversion from dynamic to gpt works - as long as the partitions are not removed during the conversion - we can rewrite the missing boot files..

    Via booting to windows media and F10 command prompt

    C:\Windows\System32\bcdboot C:\Windows
      My System SpecsSystem Spec

  6. #16


    Thanks for the link.

    Maybe I am missing something on that page but the command that would covert a dynamic to a basic requires the disk to be empty and at this point I am still hoping to salvage the data on the drive.

    If I have missed something on that page please let me know.
      My System SpecsSystem Spec

  7. #17


    I know the big mistake I made was to convert the second drive to Dynamic as well without rebooting the computer first as I had cloned drive c before converting it. When it showed the conversion went fine and after exiting Dish Management and reentering it showed the disk as dynamic and healthy and a system disk as well as oher notations so made the big mistake of not actually rebooting it. Had I rebooted I would have realized the problem and could have simply swapped out the disk with the cloned one and cloned it back to the original drive. Being a Microsoft product I should have known better and had another separate backup beside the cloned disk but all of my external hard drives were full enough the data from this disk wouldn't have fit.
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  8. #18


    Posts : 2,690
    Windows 3.1 > Windows 10


    How are you accessing the PC? You mentioned X which means your booting into ram and windows recovery?

    See the links in my sig below - windows 8.1 se - recovery tools - download a create bootable media.. there are imaging tools and partitions tools.. and it gives you access to all the drives.. it is basically the windows environment booted into ram
    Or a GUI version of winpe
      My System SpecsSystem Spec

  9. #19


    Quote Originally Posted by KYHI View Post
    what happened with your RAID setup? Did you set the BIOS for raid? do you have intel storage manager installed?

    not sure how the conversion from dynamic to gpt works - as long as the partitions are not removed during the conversion - we can rewrite the missing boot files..

    Via booting to windows media and F10 command prompt

    C:\Windows\System32\bcdboot C:\Windows
    On my desktop I have hardware RAID however on the Samsung laptop is not an option in the BIOS. I do have Intel Storage Manager installed but creating a RAID is not an option. I checked with Intel and the chipset I have does support RAID but they also told me many manufacturers disable it. I have no idea why but it would appear Samsung has disabled it so the second option was to use a software RAID or mirroring however to use it the drives need to by dynamic. I wish I could use the hardware RAID but don't see it as an option.

    I can get to a command prompt but the drive letters seem to be all over the place and don't know how to get a complete list. If I remember correctly c and d are recovery partitions and x is where it would appear most of the data and programs are. I would think that drive x is the original drive c, and I don't know how all of this will get tied back together on a bootable drive.

    I'm not sure if you are familiar with TESTDRIVE by cgsecurity I believe but it finds I believe 6 or 7 partitions and I may be able to get the data back as I believe it has a function to copy the data to another drive and also to write the partitions. If I cannot get it converted back to a basic disk with data intact I think the next option is to copy everything off onto another drive and try writing all of the found partitions but am really hoping to find a solution which doesn't require the extra work that would require.
      My System SpecsSystem Spec

  10. #20


    Posts : 2,690
    Windows 3.1 > Windows 10


    well you have two drives with the same data - so you should only test with one drive..
      My System SpecsSystem Spec

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Drive no longer boots after converting to Dynamic
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