(The screenshots in this article were taken using Windows 10 but this guide should help with other operating systems such as Windows 11, 8.1, 7, Vista etc.)

You can use the built-in Disk Management utility to resize, create, delete and format partitions and change their drive letters.

The quickest way to launch the Disk Management utility is by typing “Disk Management” into the search box in the Control Panel or Start menu, then open the “Create and format hard disk partitions” option that comes up.

Once opened, you will see a window divided into two panes. The top pane shows you a list of your partitions, referred to as volumes, the bottom one shows you a graphical representation of your storage devices.


The screenshot above shows two common issues with flash drives, mechanical hard drives & SSD drives, these being, disk “Not Initialized” as shown on “Disk 2″ & on “Disk 3” a portion of unallocated space on the drive. I’ll explain how to resolve these issues below.

Formatting a Partition

Use the Format option in a partition’s right-click menu to format it with a new file system and erase its contents. You’ll lose all files on the partition if you do this!
In most cases, a quick format will be sufficient to resolve minor issues with a drive that has corrupted data. This will not resize or change the partitions.

Deleting a Partition/Volume

Right-click a partition and select Delete Volume to delete a partition. This is used to return the drive to unallocated space ready for creating a new partition. This is usually the first step in resolving issues with a drive that is not showing its full capacity.

Creating a Partition

Once you’ve shrunk or deleted a volume, you can use the free space to create another one.  Right-click inside the unallocated space and select New Simple Volume.


This will open the New Simple Volume Wizard, which guides you through setting a size for the partition, assigning a drive letter and formatting it with a file system. In most cases, the settings that are automatically populated will suffice.

Initialize Disk

This is usually required for a new disk that is not showing up under “This PC”.  Right click on the box in the left pane and click on “Initialize Disk”, this will open the Initialize Disk Wizard.  In most cases, the default settings will suffice.


Article Written by Rhys Morgan 28 June 2017

How to Create, Manage Delete and Resize Disc Storage Partitions on Windows
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How to Create, Manage Delete and Resize Disc Storage Partitions on Windows
How To Create, Manage, Delete and Resize Disc Drive Storage Partitions on Windows 10, 8, 7 Vista using the Disk Management Utility
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7dayshop.com Limited
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