How to Resize NTFS Partition Without Losing Data

Tracy King updated on Dec 19, 2019 to Partition Master | How-to Articles

Overview of NTFS

NTFS (Windows NT File System) is the standard file system of Windows NT, including its later versions Windows 2000, Windows XP, Windows Server 2003, Windows Server 2008, Windows Vista, Windows 7 and Windows 8/10.  

NTFS is a high-performance and self-healing file system, which supports file-level security, compression, and auditing. It's also compatible with storage devices with large volumes and huge storage devices such as RAID. The most important new feature of NTFS is the ability to encrypt files and folders to protect your sensitive data. To avoid crippling Windows NT, Microsoft created a new file system that was not based on FAT - New Technology File System or NTFS.

Now that you know about NTFS, let's move to the related issues to resize NTFS partition.

Several FAQs About Resizing NTFS Partition

Q1: Does resizing partition delete data? 

A1: Resizing & moving a partition can be two different things. Moving partition is to adjust the forward and backward position of the partition on the disk and won't delete data. Is it safe to resize Windows partition? Yes, the resizing partition can be subdivided into extending and shrinking partitions. Both operations don't delete data.

Q2: Can you resize partition without losing data?

A2: Yes, as said in the first question, you can resize partition without losing data.

Q3: What does it mean to shrink a volume?

A3: Hard drive shrinking is the practice of reducing the size of your partition to create unallocated space that you can use elsewhere. Before your computer can use the space on the hard drive to store data, the drive needs to be split up into separate areas, called partitions.

Q4: Will I lose data if I shrink volume?

A4: Shrinking partition won't cause data loss. If the partition includes unmovable files (such as the page file or the shadow copy storage area), the volume will shrink to the point where the unmovable files are located. That is to say, the used space with existing data is unavailable to shrink space. 

How to Resize Partition Without Losing Data

NTFS is not only the most commonly used file system at present, but also tend to replace FAT file system someday. To maximize the performance of NTFS partition, we need to resize the partition regularly.

What do you concern most when you resize NTFS partition? Easy operation? Data security? I think the answer is "both". This article will provide a professional partition manager to resize NTFS partition without any data loss. Besides, resizing partition with Disk Management Utility is also introduced. Check the details. 

Resize Partition Without Losing Data Using a Free Partition Manager

EaseUS Partition Master enables you to create, resize, clone, move, merge, and format partitions with simple clicks without losing data. Moreover, apart from these basic functions, this competent partition magic program also provides the other two main useful features - lost partition recovery and migrate OS to SSD to fulfill advanced needs.

Now, download EaseUS Partition Master and follow the steps below to shrink and extend NTFS with ease. 

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 Windows 10 is supported


Step 1: Locate the drive/partition

Which drive/partition do you want to adjust its size? Right-click on it and choose "Resize/Move".

choose the partition

Step 2: Resize the partition

You can either shrink the selected partition or extend it.

To shrink the partition, simply use your mouse to drag one of its ends into unallocated space. Expand the "Advanced Settings" list, where you can see the exact disk space for each partition. Once done, click "OK".

Fig. 1 Unallocated space before the drive.

drag the mouse leftwards to resize partition

Fig. 2 Unallocated space after the drive.

drag the mouse rightwards to resize partition

To extend the partition, make sure that there is unallocated space aside (if there isn't, follow the above steps to create some). In the same way, drag your mouse towards the unallocated space. Click "OK".

Fig. 3 Add unallocated space into the partition

drag the mouse towards unallocated space

Step 3: Apply changes

At this step, you will see the new disk partition information & diagram.

disk partition information after resizing

To save changes, click the "Execute Operation" button and then "Apply".

apply changes to the partition

This partition manager supports both NTFS and FAT file systems. In other words, it not only allows you to resize NTFS partition but also to resize FAT partition. Moreover, the "Create partition" utility built in this program can help you create an NTFS/FAT partition. Its "Convert to NTFS" function enables you to convert FAT (FAT12/FAT16/FAT32) to the NTFS file system. Its "Merge partition" function enables you to merge FAT/NTFS partition to another NTFS partition.

Resize NTFS Partition with Disk Management Utility

You can resize NTFS partition by built-in Disk Management utility in Windows Vista or later versions like Windows 7, Windows 8, Windows 10 and Windows Server 2008.

1. Right-click on "My Computer/This PC" and select "Manage". Click "Disk Management". Disk Management shows the detail condition of all available partitions and disk drives.

2. Right-click on any partition that you want to resize and select either "Extend Volume" or "Shrink Volume" based on your requirements.

You can directly Extend Volume if there is an unallocated space nearby the partition you want to resize. If there is no unallocated space next to the partition, have to delete the adjacent partition to make unallocated space. Deleting a partition will lead to data loss; you should back up files in advanced. If you do not want to delete the partition but must extend the NTFS partition, you can use the "Allocate Space" function of EPM to directly add free space to the target partition, such as move space from d drive to c drive Windows 10.

resize partition without losing data - extend volume

3. To shrink partition, select "Shrink Volume…" and input the amount of space to shrink on the pop-up window. You cannot exceed the size of available shrink space. (Note: system partition supports to shrink the partition to one half at most.)

resize partition without losing data - shrink volume

Summary of Resizing NTFS Partition Without Losing Data

To sum up, you can use either Ease Partition Master or Windows Disk Management to shrink partition, and no data loss will happen. But if you want to expand the partition, you need to consider the situation. If there is an allocated space, two methods are both feasible. If there is no unallocated space and you don't want to delete the partition, you'd better use Ease Partition Master for data security. 

Download Now

 Windows 10 is supported


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Frequently Asked Questions

Why Choose EaseUS Partition Master?

"I've used Partition Master Professional many times to create, delete, format, move, rename, and resize partitions."PCWorld

"Partitioning tools have come a very long since the days of complicated command line utilities and EASEUS Partition Master is one of the most advanced programs available."TECH ADVISOR

"I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes."Lifewire

Will the "Migrate OS" feature transfer the Windows system files only or the whole C drive?

To ensure that the migrated system will boot normally, the Migrate OS feature will transfer all the files in the system and the boot partitions. Generally, the boot partition is the C drive so the transfer will include all the files in C.

Does EaseUS Partition Master license apply to multiple computers?

The license of Partition Master Professional and Server editions can be used on 1 computer only, while that for for the Technician and Unlimited editions can be used on multiple machines.

What is the difference between EaseUS Partition Master Trial version and the Free version?

Free is for home users only, with most basic functions available such as partition resize and clone. While trial can help you understand how this product works and test what a full license can do on a business or server OS machine.

Will it cause any data loss after resizing the partition in EaseUS Partition Master?

Generally, it will not cause any data loss or boot issue by resizing a partition. However, in order to protect your data, we suggest that you backup the partition before resizing, in case of any unexpected situations such as power outages, computer hardware failures, etc. You can use EaseUS Todo Backup to backup the partition and its trial version is fully functioned for 30 days.

What should I prepare before resizing the partition?

On the partition that is going to be operated, there might be some files being occupied by other programs. To ensure a successful operation, we suggest that you close all the unnecessary software before resizing that partition. Otherwise, EaseUS Partition Master will detect the partition being locked by the other software and require a reboot to resize the partition under boot mode.

About EaseUS Partition Master

All-round disk & partition management software for personal and commercial use. Let it manage your storage drive: resize, format, delete, clone, convert, etc.