Standard free software that allows you to change partitions and clone disks
AOMEI Partition Assistant is a storage management app developed by Chinese software vendor AOMEI Technology that can handle partition resizing, which normally requires formatting, in a wizard format while retaining data.
See below for basic and dynamic discs / MBR and GPT

Basic disks and partitions
Windows standard disk management Basic disks and partitions Windows disk management includes basic disks and dynamic disks, but dynamic disks have been discontinued […].

Dynamic disk and RAID
Windows-specific disk management with spanned volume and software RAID Dynamic disk is a Windows-specific disk management format implemented from Windows 2000 and is subject to partition restrictions […].
System requirements
Version 9 as of
OS: Windows XP / Vista / 7/8/10 (32bit / 64bit)
Support device
Support file system
Where to get the software
AOMEI Partition Assistant Standard Official Download Page
Install AOMEI Partition Assistant Standard
The AOMEI Partition Assistant Standard installer does not include adware or spyware.
Click "Free Download" on the official download page to download the installer.
When the installer is started and the User Account Control dialog is displayed, click "Yes" to allow it.
The language selection is "Japanese" and "OK".
The paid version of the advertisement will be displayed, so click "Skip" to use the free version.
Check the license agreement and if there are no problems, click "Install Now".
"Experience Now" completes the setup and launches AOMEI Partition Assistant.
How to use AOMEI Partition Assistant Standard
AOMEI Partition Assistant can be used for basic partition operations of basic disks even in the free version, and can also be used for storage configured with RAID on the chipset.
Basic operation
The operation target of AOMEI Partition Assistant is "Disk" and "Partition", and the menu is different, but the basic operation is the same. Select "Disk" or "Partition" and then set the task to be executed.
When AOMEI Partition Assistant is started, the User Account Control dialog is displayed, so click "Yes" to allow it.
The number displayed in the applicable part is the number of pending tasks. You can check the tasks by clicking ▼.
Click Apply and select Yes in the confirmation dialog to start processing tasks that are on hold.
Operations available on "disks"
Duplicate data from one disk to another
・ Check for bad sectors
Check for bad sectors on the disk
-Delete partition
Delete the partition on the disk to make it "unallocated"
・ Disk defragmentation
Eliminate disk fragmentation
・ Properties
Check details such as the number of disk sectors, number of cylinders, and number of heads
* Dynamic disc menu cannot be used in the free version
* Rebuilding the MBR cannot be used because the boot media cannot be created in the free version.
* Hard disk erase is not displayed in the "Pro" icon, but cannot be used in the free version.
* Disk backup is backup software " AOMEI Backupper Is required separately
To select "Disk", click the target disk from the upper or lower pane.
Disk clone
Not only can the copy of the disk be divided into partitions of the same size as the copy source, but the partition size can be adjusted as desired.
Select the copy source disk and select “Disk Clone” from the left sidebar.
Select the clone mode and click Next.
You can resize the partition in a mode that copies only the used space where the data is stored.
Sector-by-sector clone
Completely duplicate the source disk, including the partition.
Select the target disk to duplicate to and click "Next".
Check the dialog and click "Yes".
Select the clone option.
Available when the clone source disk and the target disk are the same size or the target disk size is large.
Match to copy destination
In the mode of duplicating with the same partition configuration as the clone source disk, if the copy destination disk size is smaller than the copy source disk, the partition size is automatically adjusted according to the data size stored in the partition.
After completing the wizard, click "Apply" to display the pending tasks and click "Continue" to start cloning.
An error message may be displayed when the cloning process is completed, and a crash dump file is also generated, but if the processing progress is 99%, the cloning may be completed.
Bad sector check
"Checking for bad sectors" visualizes the health condition of an optical disc and can be used as a guide for disk replacement.
Execute it when there is a strange noise or slowdown from the HDD, and if an error block is detected CrystalDiskInfo , FromHDDtoSSD Detailed analysis is recommended using such as.
Delete partition
Delete all partitions in the drive to make them unallocated.
Disk defragmenter
Delete all partitions in the drive to make them unallocated.
Eliminate disk fragmentation with features implemented from version 9.
Operations available on "partitions"
Resize partition
・ Combine
Join adjacent partitions while preserving data
·clone
Duplicate partition to partition on another disk
·create
Create a new partition in the "Unallocated" area
·Delete
Delete the partition to make it "unallocated"
·format
Format the partition
・ Change label
Create to change the label of a partition
-Change the drive character
Change the drive letter of the partition
・ Hide
Cancel and hide the drive letter of the partition
* Erase partition is not displayed in "Pro" icon, but cannot be used in Standard.
* Partition backup is " AOMEI Backupper Is required separately
To operate "Partition", select the target partition and then select it from the context menu (right-click menu).
Resize / move partition
Moving / resizing a partition resizes an existing partition while preserving the saved data.
To check the partition before executing "Resize / Move Partition", select the target partition and then select "Check Partition" from "Detailed Processing" in the context menu.
Check "Run chkdsk.exe to check for errors on the partition" and click "Yes".
To resize, move the bar in the "Size and location" item or enter a number in "Partition size" to specify the partition size.
If there is free space in the partition adjacent to the selected partition, check "Allocate free space from partition (*) to (*)" to use the free space of the adjacent partition to set the size of the target partition. Can be expanded.
Combine partitions
Combine two partitioned partitions into one partition while preserving the data stored in the partition.
For partition combination, the configuration on the disk including unallocated space is displayed, so check the area to be combined with the selected partition.
The data contained in the combined partition will be saved in the selected partition while being stored in the folder "* – drive-xxxxx".
Clone partition
Copy any partition to "unallocated space" on the disk.
Select the clone mode and click Next.
You can resize the partition in a mode that copies only the used space where the data is stored.
Sector-by-sector clone
Completely duplicate the source partition, including free space.
Specify the unallocated space of the target clone destination and click "Next".
Set the partition type and drive character, and resize the partition as needed.
The partition is automatically cloned with the label "Clone (drive letter)".
Create partition
Create partition creates a new partition in unallocated space.
Select unallocated space and select "Create Partition" from the left sidebar.
The partition to be created is "Extended partition" by default, so if you want to change it to "Primary partition", click "Details".
In "Details", you can set the label and partition type.
Delete partition
Make the selected partition "unallocated".
How to buy AOMEI Partition Assistant Pro
AOMEI Partition Assistant Pro, which supports "creating bootable discs", "converting MBR and GPT formats", "dynamic disk management", etc., can be upgraded to a new version for free. Only the lifetime version (indefinite) is available for about 1 yen per license. So, the settlement is a German settlement agency service, "Clever Bridge", which also has a Japanese subsidiary.
AOMEI Partition Assistant Pro purchase page
AOMEI Partition Assistant Pro purchase page Click "Buy Now" in "Professional Edition".
After confirming the product and price on the purchase page, enter the required items.
When the authentication of payment information is completed, the final confirmation screen will appear, so click "Buy now".
When the payment is completed, the product key will be displayed at the same time as the order number, so copy it.
Launch AOMEI Partition Assistant and enter the license code to register in the icon menu to activate.
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