Just like with disks, partitions too are indexed and have numbers associated with them. After selecting the disk, use the below command to list all the partitions in that specific disk drive. Use the below command to select the disk in which the partition you want to extend is located. For example, I have three hard drives in the system and they are numbered from 0 to 2. Each disk has a number associated with it. Now, execute the below command to list all disks in your system. In the elevated Command Prompt, execute the below command to initialize the Diskpart tool. Doing so will open an elevated CMD prompt.Ģ. Now, right-click on the result and select the “Run as administrator” option.

First, search for “Command Prompt” in the start menu.

The drive you are trying to extend should have an unallocated space right next to it.

Diskpart can only extend partitions with the NTFS file system.

You cannot use the below method to extend boot partition a.k.a Windows installation drive.

That way, you will have access to the data even when something goes wrong. If you don’t then either use the built-in GUI tool or third-party tools like Paragon or EaseUS.īefore proceeding, backup data in the drive you are trying to extend. I assume you know a few things like unallocated space, file systems types, etc. Note: Only follow the below tutorial if you are fairly confident and know what you are doing. Without further ado, follow the below steps to extend partition using Diskpart commands in Windows.

Almost all the programs you see on the internet use Diskpart in the background to manage partitions. Diskpart is a built-in command-line tool that lets you create, delete, or extend partitions in Windows.

Increase system reserved partition