Partition Magic - Partition Manager Software

Extend partition with one step
Resize/Move partition without data loss.
Create, delete and format partion with simple steps.
Copy partition and disk to transfer data with ease. Support disk and partition size larger than 2 TB. Keep your data safe even in case of power outages or hardware failure.
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Changing partition letter

  • Some operating systems assign letters (C:, D:,…) to hard disk partitions at startup. They are used by applications and operating systems to locate files on partitions.

  • Connecting an additional disk, as well as creating or deleting a partition on existing disks, might change your system configuration. As a result, some applications might stop working or user files might not be opened. To prevent this, you can change letters assigned by an operating system.

    To change a letter assigned to a partition by an operating system:
    • Select the hard disk and partition on it.
    • Select Disk - Advanced - Change Letter or a similar item in the Advanced sidebar list or by clicking Change Letter on the toolbar.
    • Select a new letter in the Change letter window.
    • By clicking OK , you'll add a pending operation to partition letter assignment.

  • The new partition structure will be graphically represented in the Acronis Disk Director Suite main window.


    • Only Windows NT/2000/XP lets you change letters assigned to partitions. Windows 95/98/Me assigns letters to partitions automatically.
    • Directly changing a partition letter might affect shortcuts to existing partitions. Changing a partition letter in Windows NT/2000/XP might result in problems running applications and opening files on the partition. If it is a system or swap file partition, it might cause OS boot problems. A detailed discussion of partition letter assignment rules for various operating systems appears in «Creating A New Partition».