Partition is a part of a hard drive. Only after partitioning a hard drive, you can
store data. Resizing a partition is to change the size of a partition by shrinking
or extending it. And you can extend partition or shrink partition depending on your
requirement. With the increasing data day after day, partition resize has become a
common way used to partition management.
Why you should resize partition in Windows 10? The directly answer is that it can
help you take full advantage of space. For instance, due to the daily increasing
data, one or two of your partitions may be in low disk space, especially for system
partition. At the same time, this problem will influence the speed of computer. How
to solve the problem? The answer is resizing partition.
What’s more, if there is only a big partition on a hard drive when you buy a new
computer. But as for most of users they require 2 or 3 partitions to store their
files, applications and system separately. At this moment, you can resize partition
to get unallocated space and then create
partition within the unallocated space. You can also split partition to get multiple
Although Disk Management in Windows 10 can also help you extend or shrink partition,
there are limitations for the tool. Take extending partition as an example, if there
is no unallocated space next to the partition you try to extend, the Extend
Volume will be grayed out so that you cannot extend volume in Windows 10. Meanwhile Disk
Management cannot copy disk, copy partition, merge partitions, resize FAT partition
and so on. So in this situation it is impossible for you to extend partition with
As for AOMEI Partition Assistant Standard,
the free partition management software can enable you to resize partition, create
partition, move partition, migrate OS to
SSD and make bootable CDwithout losing any data.
Compared with Disk Management, this software allows you to extend partition without
worrying if there is unallocated space next to the partition you want to extend.
Besides, the more powerful features can help you manage your partitions
The following steps will show the detail steps of how to resize partition.
Case1: Extend Partition
Before you do:
If the unallocated space is not adjacent to the partition you want to extend,
you can move partition to adjust the position for the partition first.
If there is no unallocated space, you can shrink partition to get it at first.
Make sure there in no running program in the partition you want to resize.
Usually low disk space happens to system drive. So the following detail steps are how
to resize system partition when there is unallocated space next to it.
Step1: Download AOMEI Partition
Assistant Standard. After installing it, you can open it to resize partition in
Windows 10 without data loss. Right-click C partition and then choose Resize
Step2: Right moves the bar to decide how much volume you want
increase from the unallocated space and then click OK.
Step3: After step2, you will find the C partition is changed from
28.5GB to 54.54GB. To perform the operation, please click Apply.
Case 2:Shrink Partition
Step1: Open this software, right-click D partition and then chooseResize Partition.
Step2: Left drag the bar to change size of D partition to get
unallocated space and then click OK.
Step3: You can see the size of D partition is smaller than before
and there is unallocated space next to D partition. Click Apply to
perform all the operations.
When you shrink partition, the operation will under PreOS
Mode and your computer will reboot as the following situations:
The partition you want to shrink is system partition.
There is a page file or AOMEI Partition Assistant installation file in the
partition which you try to shrink.
There are running programs in the shrinking partition.
AOMEI Partition Assistant Standard helps you resize partition within Windows 10
without losing any data. Besides using the feature of Resize Partition to expand
partition, this software has another feature called Extend Partition Wizard which makes
you increase the size of partition more easily.