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Disk convert to dynamic after create partition

  • Case: In order to dual boot Windows 8 and Ubuntu (Windows 8 is my current operating system), I planned to create a new partition which will be used to install Ubuntu. So I shrank one of my partitions with system built-in Disk Management tool to release unallocated space, and then created new partition. Nevertheless, after I finished new partition wizard, Disk Management prompted creating partition will convert selected disk to dynamic, like the following interface shows:

    At the beginning of time, I clicked "No", but "Yes" at the second time. After this operation, the whole hard disk became dynamic, and disaster was generated at that time. I can’t install Ubuntu to any other volume. How can I complete Ubuntu installation under this situation?

    Why Disk Convert to Dynamic after Create Partition

    From the description above, we give the most probable reason. There have been 4 primary partitions in Windows 8, and the disk is MBR disk.  A MBR disk is able to hold the maximum of 4 primary partitions. If users go on creating partition at this time, the selected disk will be converted to dynamic disk.

    Solution to Disk Convert to Dynamic after Create Partition

    When dynamic disk has been generated, users had better convert dynamic disk to basic if they want to install Ubuntu. Then, convert one of primary partitions to logical except Windows installed partition (unlike Windows which can only be installed to primary partition, Ubuntu can be installed to logical partition). Nevertheless, system built-in Disk Management will fail to complete disk conversion directly:

    Actually, Disk Management also offers a solution to convert dynamic disk to basic, but users have to delete all existing partitions in advance, including system partition. As a result, users have to suffer data loss and reinstall operating system. Therefore, this solution is not advisable.

    Luckily, there is a partition program which can help convert dynamic disk to basic in one step and without data loss. But before converting, users need to restore the disk partition layout to what it was before it was converted to dynamic. Then, launch the tool to get its main interface:

    Next, right click the area boxed with red line and choose the function "Convert Dynamic Disk To Basic Disk".

    At last, click "Apply" button in toolbar to apply disk conversion. Note: users will be prompted to restart operating system since the selected disk is being used. Please do as told, and this operation is quite safe. After restarting, users will find dynamic disk has been converted to basic disk:

    After converting disk, users need to convert a primary partition to logical. Here, we also make use of this partition program to set primary partition logical. Please select the target primary partition and choose the function "Set Partition as Logical". At last, click "Apply" button to execute changes to computer.

    After that, users can shrink the logical partition so as to create a new partition to install Ubuntu. When you are encountering the situation where basic disk is converted to dynamic disk after creating partition and you want to install dual operating systems, try taking the solution above.