diskpart clean and convert gpt to mbr all my data loss or no loss

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  1. Posts : 17,807
    Windows 11 Pro

    acer3 said:
    diskpart clean and convert gpt to mbr all my data loss or no loss i did diskpart clean before gpt to mbr or if i did gpt to mbr and diskpart clean after all my data loss testdisk dont recognize it
    Our real data recovery expert here is @jumanji. More than likely by doing clean, followed by converting gpt to mbr you have lost all of your data. @jumanji would know the real answer to that question. I recommend ignoring other posters. I only know basics of data recovery, that's why I won't pretend to be an expert and suggest what you do, other than stop doing anything with your BIOS and that disk until a real expert can give you advice. Here's a little hint. Look at the badges that are under user names to the left of every post. That will give you some idea as to whose advice is likely good, and whose advice you should examine very carefully.
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  2. Posts : 613
    Windows 10

    Thats just Fdisk Navy. Thats how all Windows systems have been installed since forever man. Its what you put on it, that makes the difference.

    Youre looking at Fdisk and either drive A or drive B. These both have a maximum of 32768mb, and if you add them together you'll probably find that its 64mb, which is the size of your UEFI bios. It could be a dual bios. These files you show me here are cleary FAT 12 files from the NO NAME volume.

    What Windows does here as you can see, is your actually installing Windows inside a partition created on the A or B drives, almost like Windows is actually getting installed into a logical partition, but in Windows you cant see this.

    If you have a corrupt system bios, like bootable FAT12 partitions, id be tempted to load up FreeDos, get into Fdisk and remove the images from both disks. Then flush the roots 'TEMP' folder in the memory, with FreeDOS Command prompt and use del../s

    The VM with CPUID in Legacy mode probably only runs the chip in a single or dual core mode. Its an option but really slows down the whole experience.

    Lets work together come on man

    - - - Updated - - -

    So its back to the original posters problem. Cant see his disk in TestDisk after the 'Clean' command.

    I havnt told the OP to do anything. Only one of the reasons why he cant see it. So lets work together and help the bloke figure it out. He's hasnt even replied yet and ya making out ive blown his computer up. Get out of here.

    In the worst possible scenario for the geezas problem say, hes got no backup discs, got no original install discs, no USB install. At the moment he's pretty screwed and no options left.

    Assume that he's not that technically minded and complicated command prompt stuff is probably out the question.

    So what are out options Navy for this blokes machine? So he can see his drive again.

    We need to know what motherboard he's got. What his bios settings are like. If he has bootable CD's. Any spare hard drives?

    You know what to do Navy
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  3. Posts : 17,807
    Windows 11 Pro

    I've given him my advice and there are very few members with long standing reputations on this forum that would argue with it.
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  4. Posts : 613
    Windows 10

    Yes, youre a guru on here, i can see that. I dont dispute your lack of knowledge at all. I dont even know you.

    All i know is what ive tried myself. We're a team erkid, not enemies. Two brains are surely better than one.

    All these different types of software programs to fix stuff which is advised, Im knocking them, but you can do everything exactly the same with a motherboard disc if it supports FreeDos and boots. You dont need them.

    I wouldnt advise anyone to download any software to fix HD problems, as i dont agree with it. Can make things worse.
    Id rather use a motherboard disc to fix any hard drive issues. Its easy.
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  5. Posts : 16,997
    Win 10 Pro 64-bit v1909 - Build 18363 Custom ISO Install

    Hello @Pluginz,

    Pluginz said:
    All these different types of software programs to fix stuff which is advised, I'm knocking them, but you can do everything exactly the same with a motherboard disc if it supports FreeDos and boots. You don't need them.

    I wouldn't advise anyone to download any software to fix HD problems, as I don't agree with it. Can make things worse.
    I disagree with your blanket generalisation. I had a problem a while back where a Disk became RAW, and I was grateful for TestDisk to come to the rescue.

    It might have been better if you had posted a link to a Motherboard Disk for the OP along with some basic instructions for them.
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  6. Posts : 613
    Windows 10

    Thank you Paul, its all alright.

    Theres all kinds of software about and whatever suits the individual is brilliant and im not knocking that.

    Are all the commands in TestDisk the same as Fdisk? Do you guys know?

    - - - Updated - - -

    Exactly, we need to ascertain what the acer3's hardware is.

    Ok, i'll start. Let me go first.

    acer3, im really sorry about all these posts. Maybe you enjoyed the read. Ah lets hope so.


    What motherboard do you have ?
    When did it come out ?
    What is the disk used for?
    Is it a data drive?
    Does it contain a Windows operating system?
    Do you have any CD's or DVD's that maybe came with your motherboard?

    Im going to assume that your motherboard has UEFI enabled, as you mentioned converting gpt to mbr.

    The feedback would be lovely

    This is longest ive stayed in a category Navy. All night pretty much.
      My Computer

  7. Posts : 4,488
    Windows 7 HP 64 - Windows 10 Pro - Lubuntu

    You're giving wrong instructions to OP or instructions that makes no sense.

    The way the drive is initialized is not related to BIOS mode (Legacy or UEFI). You can have GPT data drives on Legacy or UEFI windows, even on Win 32bits.
    BIOS must be set to Legacy mode to boot as Legay. BIOS must be set to UEFI mode to boot as UEFI.
    A MBR drive can boot as Legacy and / or UEFI, depending how is the boot manager set. A GPT drive can only boot as UEFI.
    On some MB, BIOS CSM is to change BIOS settings to be boot able compatible with old Windows like Vista and 7.
    FDisk was a DOS command to initialize a drive, Doesn't exist any more. It has been replaced by Diskpart.

    As you have a old background I suggest you read about the new technologies. MS has very good documentation of their commands.
    Last edited by Megahertz; 06 Oct 2022 at 12:45.
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