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.