When you try to format raw space or to create a new partition out
of the unallocated space on your hard drive in Disk Management, you might get the
following error message:
"the selected GPT formatted disk contains a partition which is not of type 'PARTITION_BASIC_DATA_GUID'
and is both preceded and followed by a partition type 'PARTITION_BASIC_DATA_GUID'
Before getting this error message, you probably have restore a backup from a smaller
GPT disk and the destination disk was using MBR partition table before. The restore
process will overwrite data of the large disk with GPT partition table. The problem
is that it only convert part of the hard drive to GPT without cleaning the rest
space. Besides system restore, any process trying to install system with GPT
partition table by overwriting the destination disk may also fail to convert the
entire hard drive to GPT partition style. Therefore, you will receive this error
message. If you have created GPT
protective partition format on this hard drive, you will also give you such
error when you try to access it.
To fix this problem, you can simply convert the disk to MBR If you sure you want an
MBR disk as your boot disk. To convert GPT to MBR disk with Disk Management or
DiskPart utility will require to delete all partitions on the hard drive.
Fortunately, AOMEI Partition Assistant
Professional is able to convert GPT to MBR without losing data or affecting
OS, and it works the same to convert MBR to GPT. After the conversion, you shall be
able to get rid of the GPT protective partition in windows 10/8/7.
To Convert GPT to MBR without data loss
Step1: Download and run AOMEI Partition Assistant on
your computer. In its main interface, you can see all status of your hard drives and
partitions on the computer.
Step2: Right click on the disk that gave you the error and then select “Convert
to MBR Disk”.
Step3: Click “OK” confirm the process.
Step4: Then you can preview the partition layout after the conversion. It is as you
required, click “Apply” t apply the operation.
This process will be complete in AOMEI Pre-OS mode, so your computer will reboot.
Until it finishes, Windows will be loaded again. Then you can create a new partition
or merge the unallocated space to
one of the existing partitions without having the error that the selected GPT
formatted disk contains a partition which is not of type. This Professional edition
only works in Windows PCs. If you want it to run on a Windows Server, you can try
the AOMEI Partition