How to Resize Partition on Windows Server 2012


This article is about how to resize partitions on Windows server, help you to better manage your disk partitions. I will introduce three ways to help you resize Windows 2012 partitions.

Andrew Wright


by Andrew Wright

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Extend/Shrink Volume on Windows Server 2012 with Disk Management

First of all, you can use Windows Disk Management tool to resize the partitions. Enter Disk Management window, you can view the partitions list, select the partition you want to resize, right-click it, then you can choose “Shrink Volume” or “Extend Volume” to manage your partitions.

But if you want to extend partition, you need to make sure there is some unallocated space on your disk, or the “Extend Volume” option will grey out.

Resize Partition on Windows Server 2012 with Command Prompt

The second solution is diskpart command prompt, you can make it easily with the specific instructions bellow:

Notice: command prompt will perhaps cause data loss problems on the disk, if you have important data on it, you need to make a backup or try another way.

1. Run CMD by press “Win+R”, type “CMD” in the window.

2. Type “diskpart” in the window and press Enter.

3. Type “list volume”

4. Type “select volume X (X is the drive letter of your disk drive.)

5. Type “extend size=10240 (size stands for the capacity you will extend by and the unit is MB) and Enter, if you want to shrink your volume, you can type “shrink” to replace “extend”.

6. Type “exit” and finish.

Resize Partition on Windows with Partition Manage Tool

Well, I think the best solution is to use partition manage tool, which can help you safely resize your partitions. You can use a free partition manage tool like IM-Magic Partition Resizer for Windows 10/8.1/7, However for managing disk partitions on Windows Server 2012 R2 or such Server OS, you may need to use Partition Resizer Server Edition, a more reliable program which is 100% safe with roll-back tech to protect your server.

Free to resize partition on Windows with partition toolresize partition on Windows with partition tool

[Guide] Steps to extend volume without data loss

This step by step guide will show you the right way to extend any volume using  IM-Magic Partition Resizer Unlimited edition.

Step-1  Download install, and launch the program.

Step-2 Right click the large volume to produce unallocated free space.

Steps to resize your disk partition
Steps to resize your disk partition

Step-3  Then right click c and drag the border to acquire the free space.

Steps to resize your disk partition
Steps to resize your disk partition

Step-4 Apply the changes.

You can install the program, and run the program, then you can drag the mouse to resize the partitions easily.

Note: For Windows Server system, you can download IM-Magic Partition Resizer server, it has more functions to manage the partitions.

download free windows 10 partition software

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