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Solutions to Maximum Number Problem When You Create Partition

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    Question: I’m planning to create a new partition in Windows 7 by using disk management utility, so I shrank the existing D drive to make an unallocated space at first. Nevertheless, maximum number problem emerges at the end of creating partition: "You cannot create a new volume in this unallocated space because the disk already contains maximum number of partitions". What’s the reason and how do I fix this issue?

    Answer: it seems the hard disk was configured with MBR which supports 4 primary partitions or 3 primary partitions and 1 extended partition at most. If users want to fix the maximum number problem to create more partitions, there are 3 ways:

    1.Convert the MBR disk to GPT since the latter format supports up to 128 partitions in Windows. Nevertheless, if partitions have been created, disk management utility will require users to delete all existing volumes before converting. For lossless conversion, users can resort to MiniTool Partition Wizard. Detailed steps can be found from Convert MBR Disk to GPT Disk.

    Note: this solution is not suitable for the disk which saves Windows, because converting MBR to GPT may cause system unbootable.

    2.Convert the last primary partition to logical partition, which brings no damage to data, and then create a new primary partition in the unallocated space. Since disk management utility does not provide a function to set partition logical, users can resort to MiniTool Partition Wizard, which is quite easy to master. For detailed steps, please see Set Partition as Logical.

    3. Convert the basic disk to dynamic disk since the latter could contain a lot of simple volumes, and the converting can be realized in disk management. Detailed steps are as follows: right click the basic disk, choose “Convert to Dynamic Disk” from the shortcut menu, and do conversion according to wizards. However, dynamic disk may bring users a lot of troubles. For instance, some Windows systems like Windows 7 Home Basic do not support dynamic disk.

    These are 3 ways to solve the maximum number problem of creating partition, and users can choose the best one in accordance with practical situations.