PA Pro, Converting GPT to MBR

I had the need to convert a GPT Windows 8 system disk to MBR, so that's why I bought Partition Assistant Professional.  After the conversion, I was unable to boot the system.

I had to instead restore the GPT disk from a backup and update the motherboard BIOS in order to get the system to boot with the original GPT formatted disk.  I gave up with trying the GPT to MBR conversion as there is apparently something wrong with that process.


  • Works fine. It changes the partition style from gpt tp mbr.

    Did it claim to make already installed os bootable in the new partition style.?

  • Hello pitmancd,

    We are so sorry for the inconvenience.As for your problem, after the conversion, have you changed the boot mode from UEFI to BIOS?

    If you have any further questions please feel free to let us know.

    Best Regards,
    AOMEI Support Team

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