Create New, Resize, Extend Partition using Disk Management Tool in Windows 10/8/7

For any partition management work there are many free third-party tools available, but Windows includes a pretty good Disk Management Tool which should suffice you for most of your disk management work like partitioning, formatting, merging, etc. Similar to Windows 7, the Windows 10/8 built-in Disk Management Tool also allows you to re-size the disk, create a partition, etc., if you have enough free space on your system drive.

Disk Management Tool in Windows

Before you start, I recommended you back up your data to a safe place. Next, you need to access Computer Management tool first. So, press Win+X simultaneously to bring up the Power Tasks Menu and from the options displayed choose Computer Management’.

This will display Computer Management. Computer Management section is a collection of Windows administrative tools that you can use to perform your computer-management tasks. The option also appears in the Administrative Tools folder in the Control Panel.

In Computer Management, you will find Storage option. Under it, you will notice ‘Disk Management.’ Click on it. Alternatively, you may simply type “partition’ in Settings search and hit Enter to open the Disk Management Tool. Once you have clicked it open all the disks with their volume will be displayed in the small window.

Select a disk for creating a new one. Right-click on it. You will see various options like:

  • Change Drive Letter and Paths
  • Format
  • Extend Volume
  • Shrink Volume
  • Add Mirror
  • Delete Volume

Read: How to delete a Partition.

Create New Partition or Volume

Let us as an example say that you want to create a new volume or partition. So to do this, first select ‘Shrink Volume’.

Then, wait for some time while Windows check the amount of space available for Shrink. Enter the amount of space to shrink in MB and hit ‘Shrink’. Once you hit the button, you will observe some free space created. Check out the screenshot below.

Now, right-click on the free-space created and choose the first option ‘New Simple Volume’.

Then, select the amount of space you would like to allocate to the free space and click ‘Next’.

Now, assign a drive letter to your partition and move to the next step by clicking ‘Next’.

If you would like to store data on this partition, you will have to partition it first. So, format the partition with NTFS.

After the formatting process as been completed successfully, you can see a new partition created in your Windows Explorer.

Using this inbuilt Disk Management Tool in Windows 10/8/7, you can similarly create a partition, extend a partition, shrink a partition and do more very easily. See this post if your Extend Volume option is grayed out.

How to resize a partition in Windows using DiskPart may also interest you.

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Anand Khanse is the Admin of, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.