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Freeware to Repartition Hard Drive in Windows without Destroying Data

Updated on Dec 19, 2018 by Tracy King to Partition Master

How to repartition hard drive without data loss? EaseUS Partition Manager can repartition hard drive disk on Windows 10/8/7 and even Windows XP/Vista safely and easily for free.

Haven't you recognized the need to repartition hard drive to maximize the performance of your computer? Do you have ever encountered following situations: repartition hard drive to use the space on your hard drive more efficiently, convert a FAT partition to NTFS for enjoying more advanced file system, or copy partition or disk for data security or disk upgrade? Would it be worthwhile to repartition hard drive and how to repartition hard drive on Windows 10/ 8/7/XP/Vista or Windows Server 2016/2012/2008/2003 without losing data?

What is hard drive? Hard drive overview

Before repartitioning hard drive, stay and learn some knowledge about hard drive here. Generally speaking, hard drive is a non-volatile storage device which stores digitally encoded data. It can be regarded as a box and inside the box are electronics that direct the read/write head or heads held aloft by a spindly arm.

The hard drive's driver electronics contains the instructions for converting bytes into magnetic domains when writing data onto the hard disks and for translating magnetic patterns into bytes when data is requested by the CPU.

Here's an image of a hard drive.

Hard drive image

The magnetic surface of hard platters in a hard drive is formatted into tracks and sectors which can hold a fixed number of bytes. When data needs to be recorded, the hard disk platters rotate at high speeds and passes underneath the hard drive read/write head. The magnetic head produces a magnetic field which magnetizes the corresponding region where data is supposed to be stored. During this process, the surface acquires a magnetic flux or pattern representative of the information being stored.

Repartition hard drive in Windows without destroying data

So, what is the best solution to repartition hard drive? Well, some users may suggest reinstall Operation System. However, according to the opinions of experienced computer users, to repartition hard drive by reinstalling an OS is typically a destructive proposition -- it is time-consuming and usually involves backing up data, formatting, and cleaning, etc. Who would like to spend time in such a troublesome and time-consuming job? Then you need a more efficient way - using free third-party repartition software to repartition hard drive.

Actually, besides easy operation, the safety of data is another factor that you may concern about most when you repartition hard drive. It's always a nightmare if you lose your important data. Although lots of partition software are available in the market, you need the easiest and safest one. From the true experiences of those who once used partition software to repartition hard drive, EaseUS Partition Master Free Edition is the best choice. Lots of computer users love to use this re-partition program and recommend it to their friends because it is not only easy and safe to operate, but also 100% free!

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 Windows 10 is supported

Apply free partition manager software to repartition Windows 10/8/7 hard drive

As a free hard drive partitioning utility, EaseUS Partition Master Free Edition provides a range of powerful functions to repartition hard drive including: Resize/Move partition, Copy partition, Merge partition, Create partition, Delete partition, Format partition, Convert to NTFS, Change drive letter, Set active, etc.

Follow and see how to use EaseUS Partition Master Free Edition to repartition hard drive in Windows 10/8/7:


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 freeware also works perfectly with hardware RAID and Windows 2000/XP/Vista, etc. Operating Systems.

Besides, EaseUS Partition Master also  provides Partition recovery wizard and Copy disk/partition wizard features. It is a complete solution to solve your disk and partition problem.