How to extend c drive with free tools when cmd diskpart failed

Video Tutorial to Resize Partitions with Partition Tool (Free)


If your C drive run out of space, you can find the best solutions here to extend c drive with free tools when diskpart cannot extend boot c drive.

Andrew Wright

Updated on Oct 4, 2022

by Andrew Wright

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C Drive is Full - Can I extend c drive with diskpart cmd?

When your C drive is full and you want to extend it, you may wonder whether it is possible to extend volume with diskpart command.

c drive full

Using the diskpart commands, you can extend, create, delete, shrink, clean, delete and perform other disk resizing tasks with certain conditions, which will be illustated in the following parts.

Truth: As to the c drive expanding, dispart cmd or diskpart.exe cannot work on the boot volume, ie the C drive. It's lucky that there is a replacement, a free tool IM-Magic Partition Resizer that we would introduce and include a tutorial about changing volume size without losing data later in this article.

Resize partition using cmd diskpart, resize c drive with disk management

Video - how to extend a drive with disk management or diskpart (Windows 11, 10, 8, 7 Supported)

If the unallocated space is not next to C drive, then you can delete the next partition and extend your C drive. Both the partitions C and contagious partition must be of the same file system. This way you can extend C drive. Deleting a partition means you are deleting the data stored on the drive. If the file system of the next drive is not NTFS then then you need to format the next drive in NTFS.

The basic diskpart commands:run cmd

1. Run->diskpart.exe: This takes you to diskpart command mode.

2. List Disk: To view the disks connected with your system.extend c drive with diskpart

3. Select disk *

4. List partition

5, select partition *

6, extend size=1024 (1024 means 1GB, if there were 10GB free space, you may type extend size=10240 instead)

Diskpart cmd to extend volume with certain terms and conditions:

More diskpart cmd command:

List disk: To view the disks on the computer

Select disk *: To get the target disk selected and * means the disk number from list disk command, for example, if you want to select disk 1, and change the disk partition in disk 1, here you need to type list disk at first and then select disk 1

List partition: To view the partitions on the computer

Select partition: To select the partition. If you want to do any disk activity on any partition, you must select the partition first.

Shrink-To shrink the drive. This creates unallocated space which can be added to other drive.

Extend- To extend your drive.

Format- To format the partition

Merge-For Merging partitions.

Create-To create a partition.

Delete-Use this command to delete a partition.

Possible risks: The diskpart is a command based utility. Most of us are not comfortable and sure in when typing commands to do any resizing activity. If you type a command and by mistake press enter, you will not be allowed to cancel the activity. This is a risk when you are not sure about diskpart.

To resize c drive or move unallocated space, or extend drive without losing data, IM-Magic Partition Resizer Free edition is a free tool which does most of the important disk related job.

How to Resize Partition with IM-Magic Partition Resizer Free edition

This tool is free to use. The scenario which we discussed where it is not possible to extend your C drive is easily solved by this tool. It lets you move the unallocated partition to the right side of C drive. This way you can extend your C drive. With IM-Magic Partition Resizer Free edition you can shrink and merge partitions without loosing the files. The tool is designed with rollback technique which keeps the data safe when your computer is shutdown when performing any resizing activity.

Resize partition with IM-Magic Partition Resizer freeResize partition with IM-Magic Partition Resizer free

The tool is available free for all windows versions and for server editions, you can download the trial version. You can learn more about IM-Magic Partition Resizer Free edition by visiting the below website:

[Guide] Steps to extend volume without data loss

download This step by step guide will show you the right way to extend any volume for free on Windows 11/10/8/7 computers.

Note: If it's a Windows Server computer, you need to download the server edition

Step-1  Download install, and launch the program.

Step-2   Right click the large volume in Partition Resizer, select RESIZE/MOVE PARTITION from pop up selection menu and then shrink the border of the large partition to produce unallocated free space. (The large volume must be on the same disk with the target volume that you want to expand, if it's a large volume from another disk, RAID shall be applied for building the disks)resize partitionShrink d drive by right click D in Partition Resizer, and go to option "Resize/Move"

Steps to resize your disk partition
Move the border of the partition to get it shrinked

Step-3    Then right click c in Partition Resizer, and go to option RESIZE/MOVE PARTITION 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.

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