Introduction NTFS
NTFS (New Technology File System) is the standard file system applied by the Windows
NT operating system, including its advanced versions - Windows 2000, Windows XP,
Windows Server 2003, Windows Server 2008, Windows Vista, Windows 7, Windows 8 and
Windows 10. NTFS is superior to the FAT file system in performance, extendibility,
and reliability; therefore, NTFS is well received as the top choice of file system
for Microsoft's Windows operating systems.
How to resize NTFS partition in Windows 10, 8, 7?
Method 1: Resize NTFS Partition with Disk Management Utility
In Windows Vista or later versions like Windows 7, Windows 8, Windows 10 and Windows
Server 2008, it's easy to resize NTFS partition by built-in Disk Management
utility; here introduce the procedure in detail, we set Windows Vista as an
example:
1. Right click on "My Computer" and select "Management", In the
Computer Management then click "disk management". Disk Management shows
the detail condition of all available partitions and disk drives. There is the C:
and D: and free space on the Disk 0. look at this screen:

2. Right click on any partition that you wish to resize, and select either Extend (to
enlarge the size) or Shrink (to reduce the size) according to your requirements.

Note: because there is an unallocated space near by the D: drive, so
the "Extend Volume…"
option in the right-shortcut menu is available.
3. Select the "Shrink Volume…"
and will open the following windows, you can input the amount of space to shrink,
remember that cannot exceed the size of available shrink space. (Attention: system
partition just supports to shrink partition to one half at most.)

Please click the "Shrink" button to execute the operation. Windows Vista
will reduce the size of the partition online immediately.
4. Right-click the C: partition, in the shortcut menu the Extend Volume is grayed out as follow shown. The main reason
is that there is no unallocated space next to the C: partition, so you have to use
other software like AOMEI Partition Assistant Standard, the helpful Windows
partition manager to change the location of unallocated space and extend the C:
partition.

Method 2: Resize NTFS Partition with DiskPart.exe Utility
You can use Diskpart.exe utility to manage disk partition in a command line (CMD).
For a NTFS partition or volume, it can extend by incorporating unallocated space
into an existing NTFS volume with preserving the data. Here you can start with the
following steps for how to resize NTFS partition by the DiskPart.exe.:
Click Start and type "CMD", then press Enter.
In the command line prompt input: DISKPART.exe.
Type "help" to show its help information.
First, use "select" to choose a right partition that you prefer to.
Execute the "extend" command.
For more information about Diskpart.exe, read on: http://support.microsoft.com/kb/325590/
Note:
1. System partition can not be resized by Diskpart.exe command.
2. If there is no adjacent unallocated space behind the target partition,
Diskpart.exe command also can not work like Windows Disk Mangement.
Method 3: AOMEI Partition Assistant Helps Resize NTFS Partition
Safely
AOMEI Partition Assistant
Standard can resize both NTFS and FAT32 partitions and ensure 100% data
security
at the same time. The operations can be realized through a few clicks
and moves of the mouse. Here, we show you the procedure to extend NTFS
system partition.
Step1. You need to download AOMEI Partition Assistant Standard and
launch it.
In main interface, it shows you local disk information. From the main
interface, you see all partitions are NTFS partition.

Step2. If you want to extend C: drive NTFS partition, there must be
some
unallocated space, therefore, right click on D: NTFS partition and
select "Resize Partition". Drag the left slider bar rightwards to free
up unallocated space. Then click OK. You will see unallocated space
behind C drive.

Step3.
Right click on C: NTFS partition and select "Resize Partition". Then
drag the right slider bar rightwards to merge the unallocated space and
click OK.

Step4. You will see C drive is 228.86GB (before the operation C
drive is 128.73GB). Then click Apply.

To sum up, the methods to resize NTFS partition with AOMEI Partition
Assistant Standard, Windows Disk Management and DiskPart.exe command line,
all show their clear special features. However, how many of our computer users are
proficient with computer operations such as Windows Disk Management or DiskPart.exe
command line? What's more, if your system is Windows XP, 2000, 2003, disk
management even never support to resize NTFS partition.
Well, if there is a free software that can resize partition Windows
7, Windows 8 and Windows 10 simpler and more flexible than Windows built-in
tool, why ignore it? It is unnecessary to waste your time and energy on unwanted
works. No matter which windows editions you are using, Windows 2000, XP, Vista,
Windows 7 or Windows 8, Windows 10 are all supported. If you are using Windows
Server 2003 and 2008 or you want to perform more advanced operations, select an
appropriate version of the Partition Assistant (such as AOMEI Partition
Assistant Professional Edition and AOMEI Partition Assistant Server
Edition). Furthermore, this software has many other features which can help you
safely merge partitions, convert MBR to GPT, windows to
go creator. Stop hesitating! Try now to resize NTFS partition.