# How to extend partitions or revert shrunk partitions

Last Updated On: 17 Oct 2025  
2 minutes read

This document will explain the steps to extend partitions or revert shrunk partitions. This can be done in two ways,

- Using Windows interface
- Using command line interface

## Using Windows Interface

To extend a basic volume partition using windows interface, follow the steps given below,

1. Run **_diskmgmt.msc_** and open disk manager.
2. You will be able to view the available partition volumes now. Right-click the basic volume you want to extend.
3. Click **Extend Volume** and follow the on screen instructions to complete the extending process.

## Using a Command line interface

To extend a basic volume using a command line interface follow the steps given below,

1. Open a command prompt and run command **_diskpart_**.
2. At the DISKPART prompt, type **list volume**. Decide on the number of the simple volumes you want to extend.
3. Now type **select volume <volumenumber>**. This selects the basic volume's volume number that you want to extend into contiguous empty space on the same disk.
4. Type **extend [size=<size>]**. This will extend the selected volume to desired size in megabytes (MB).