How to Use Partition Magic With USB

Written by joe murray
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How to Use Partition Magic With USB
Partition a USB drive. (USB image by Angelika Bentin from

Although it contains several other utilities, the foremost purpose of PartitionMagic software is to divide a large hard disk into smaller and often more manageable sections. PartitionMagic may also be used to slice up a USB drive into two or more disk sections. The software then assigns a user selected drive letter to each new section created after dividing the main USB drive. However, the manufacturer does not recommend using PartitionMagic on removable media also known as flash drives, thumb drives, zip drives and the like.

Skill level:

Things you need

  • PartitionMagic 8.0 or higher
  • Computer with Microsoft Windows operating system
  • USB drive

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  1. 1

    Back up all essential documents.

  2. 2

    Have a rescue disk ready to use if necessary.

  3. 3

    Download and install PartitionMagic 8.0 or higher.

  4. 4

    Disable the RAID system on your computer (optional). If the computer employs a RAID (Redundant Array of Independent Disks) system, it must be disengaged in order to partition a USB drive. Find the RAID interface program on the program list (Start, All Programs, RAID control panel) and check the "Disable" box. Remove the check after the drive is partitioned to restart RAID functionality.

  5. 5

    Open the program and go to the main screen. Make certain PartitionMagic is the only program open and running when partitioning any drive. Put the USB drive into the USB slot in the computer.

  6. 6

    Select the USB drive to be partitioned.

  7. 7

    Determine the number and size of the partitions to be created.

  8. 8

    Select any other desired operations to be performed and choose "Apply Changes" to make the appropriate modifications to the USB drive.

  9. 9

    Reboot the system for the changes to take effect and open Windows Explorer to verify the success of the operation.

Tips and warnings

  • To avoid any possible problem that might be created by corrupted files, run a file check (Start, Run, type "SFC") and remember to defragment all drives before running PartitionMagic.
  • Make certain that USB drives are labelled as the last drives on the system. For practical purposes, their drive designation letters might be started from the back of the alphabet (i.e. "Z drive," "Y drive," etc).
  • PartitionMagic is not supported on Windows NT Server or Windows 2000 Server operating systems and should not be loaded on a network drive. Using PartitionMagic in the Windows mode will generally not work well when transferring drive identity to Linux or other non-Microsoft operating systems. If multiple operating systems are intended to be used, run PartitionMagic in DOS mode when partitioning any system drive.

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