By Bryce / Last Updated May 20, 2022

What the purposes of partitioning a hard drive?

In Computing hard drive, a partition is a section of a hard drive, like hard disk drive, solid state drive. It is essential to store system and data. Besides, lots of Windows hard drives contain a “Recovery Partition”, which keep files used to restore and repair your PC.

Sometimes, people may need to partition a hard drive in Windows 7, 8, 10 for the following 2 purposes.

Better manage hard drive: It helps you to organize data and files, such as videos, photos, and applications, especially if you need to keep a large amount of data on your hard drive.
Protect system and data: Most computer manufacturers create a C drive (boot partition) when they bring a new PC to market. But it is ricky because once the partition encounter an issue, all the data can be lost or corrupted. And separate partitions on your disk don't affect each other, and provide better security for your system and data.

Next, we will guide you on how to partition a hard drive in windows 7, 8, 10, without formatting.

How to partition a hard drive in Windows 7 without formatting (2 Methods)?

There are two methods of partitioning a hard drive listed on this part. You can use the Windows built-in tool-Disk Management or GUI freeware-AOMEI Partition Assistant to perform it.

✍ Note: You need to check the partition style of your disk before partitioning it. A MBR disk supports only 4 primary partitions at most, or 3 primary partitions plus 1 extended partition, while a GPT disk can create 128 primary partitions. And you can convert a MBR hard drive to GPT if it reaches the limit.


Partition a hard drive with Disk Management

Step 1. Open your PC, and press “Win + R” to launch Run box, and type “diskmgmt.msc” and press Enter to open Disk Management.

Step 2. And you will see all the disks and partitions demonstrated on the Disk Management window. And right-click on a partition, and choose “Shrink Volume”.

Shrink C

Step 2. And enter an amount of space that will be the maximum size of the new partition. And press “Shrink”.

Shrink C Size

Step 3. When the shrink operation is complete, the reduced space will become unallocated space. And right-click on it, and choose “New Simple Volume”.

New Volume

Step 4. And the creating new volume wizard will be launched, and choose “Next”.

New Volume Wizard

Step 5. And enter the new partition size in this window.

New Volume Size

Step 6. Pick a letter for the new partition. And click “Next”.

New Volume Letter

Step 7. And it will pop up a format wizard, you can choose "Do not format this volume" and click "Next". If you want to format it. NTFS and FAT32 file systems are recommended, and click “Next”.

New Volume Format

And waiting for the process get finished. And you will see the hard drive is divided into 2 partitions/volumes. And you can repeat the steps to create more partitions.

But this method is tedious, shrinking a partition is neccessary if there is no unallocated space. And as a lightweight partition and disk managing tool, it has lots of limitations making it not that convenient. For example, it needs an adjacent unallocated space when you want to extend a volume.

Best way to partition a hard drive in Windows systems

You can employ a professional disk managing freeware named AOMEI Partition Assistant Standard. It provides multiple ways to partition a hard drive in Windows 7. You can directly create a new partition or volume on free space or unallocated space without formatting. And it has more features including resize, delete, format, copy partition.

Then you can download this freeware and follow the steps below to see how it works.

Download Freeware Win 11/10/8.1/8/7/XP
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Step 1. Install and open AOMEI Partition Assistant, and right-click on a partition that has enough free space, or unallocated space, and choose “Create Partition”.

Create Partition From C Drive

Step 2. And you can adjust the size of the new partition, and assign the drive letter, decide the file system in this window. And click “OK”.

Edit New Partition

Step 3. And you can preview the change in the main interface, and click “Apply” to commit the operation.

Apply Create Partition From C Drive

● Additional content: Partition a new hard drive in Windows 7, 8, 10 before installing Windows

If you want to create multiple partitions at a times before installing Windows, you can upgrade to Professional edition. It helps you to create a bootable WinPE USB and use its “Quick Partition” features that allows you to quickly partition a hard drive.

1. Just install and launch AOMEI Partition Assistant on another PC, Choose "Create Bootable Media" in the main interface. And follow the instructions.

2. After creating the bootable USB, insert it to your PC, and turn it on, and enter BIOS to set the USB as boot drive.

3. Then you will see the AOMEI Partition Assistant shown on the screen. And click “Quick Partition” on the Disk Operation column, you can see the window shown as below. Here you can set partition size, label, partition type, and disk type, etc. And click “Start Partitioning”.

Quick Partition


This is how to partition a hard drive in Windows 7. By contrast, AOMEI Partition Assistant is the best way to perform it. Providing its concise interface, it can finish the operation easily and safely, even a 500GB, 4TB hard drive. Besides Windows 7 system, it also enables you to partition an HDD/SSD/USB drive in Windows 10, 8, XP, Vista. If you are using Windows Server, you can use AOMEI Partition Assistant Server.