Delete a Partition on a USB Drive in Windows 10

Jean updated on Sep 10, 2020 to Partition Manager | How-to Articles

USB Has Two Partitions Issue

"I have a 16GB Kingston flash drive that has been accidentally partitioned. The USB drive split into two parts, and now my USB has 2 partitions, with 7.3GB each. I've tried to delete one partition or combine the two partitions into one with Disk Management, but all failed. How can I work out the problem?"

Plugging into your USB drive with several gigabytes of storage only to see two or multiple partitions pop up in the Windows File Explorer? You may ask, can a USB drive have multiple partitions? Yes, as long as you meet the following two conditions, you can create two or more partitions on the USB.

1. Make sure your computer is running Windows 8.1 and later that supports the recognition of multiple USB flash drive partitions.

2. Your USB is generated by a specific vendor and supports the creation of multiple partitions.

Multiple partitions on one USB drive lead to a lot of unnecessary memory consumption, and it's really inconvenient. Facing this issue, you can't resolve it by simply reformatting as you can only reformat each individual partition instead of the whole disk drive. Then, it leaves you with two options to troubleshoot: one is deleting partitions on the USB drive, and the other is merging USB partitions. First, we will show you two ways to delete a partition on the USB drive with Diskpart and easy partition management software. Move to check details. 

How to Unpartition a USB Drive in Windows 10 with Diskpart 

Sometimes, the "Delete Volume" option in Windows 10 Disk Management greys out, which prevents users from deleting partitions. At this moment, you can turn to the Diskpart utility to help you out. Do as the guide instructs. Later, there should be a single partition on the USB flash drive.

Note: Deleting partitions with files saved before will cause data loss. Hence, back up your important files in advance. 

Step 1. Press Windows  + R simultaneously, type cmd, click "OK" to open an elevated command prompt.

Step 2. Type diskpart and hit enter.

Step 3. Type list disk. Soon diskpart will list all the hard drives on your computer, including your USB flash drive that is connecting with the computer. Assuming that your USB flash drive is drive G:.

Step 4. Type select disk G and hit enter.

Step 5. If there are one more partitions on the flash drive and you wish to delete some of them, now type list partition and hit enter. There should list all the partitions, numbered as 0, 1, 2...

Step 6. Type select partition 0 and hit enter.

Step 7. Type delete partition and hit enter.

Step 8. Repeat step 6 and step 7 to delete partition 1 or 2...

Step 9. After deleting all the target partitions, type create partition primary, and hit enter.

Step 10. Exit the command prompt. You can go back to the computer and follow the wizard to format the partition.

use diskpart to delete partition on usb drive in windows 10

Use an Easier Partition Manager to Delete a Partition on a USB Drive

Don't have confidence in using Command Prompt well? Some people with a little technical background may try to avoid using diskpart utility because of the complex operation. More importantly, they're afraid of making trouble with wrong commands and doing damage to their hard drive data. Apart from human factors, you might encounter an error called 'diskpart cannot delete a partition on removable media' from time to time, which makes you give up the Dispart. In all these cases, how do you remove all partitions from a USB drive/SD card easily? It is a wise choice to choose an easy-to-use partition management software as a workaround. 

EaseUS Partition Master, much more powerful than Diskpart and Disk Management in Windows 10, provides a wide range of disk organization functions and enables you to delete partition, format partition, hide partition, wipe partition, clone/copy partition, combine/merge partitions effortlessly. It goes fully compatible with Windows 10 and has advanced partition management features that are unavailable in diskpart utility, such as migrate OS to HDD/SSD.

Video Tutorial - How to Partition Hard Drive

Now, download and use this partition manager to remove partitions from the USB drive without effort.

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 Windows 10 is supported

1. Connect your SD card, USB or external hard drive to PC before the deletion.
2. Save important data from the external storage device to another secure location in advance.

Step 1: Launch EaseUS Partition Master on your PC

On the main interface, right-click on the partition of the SD card, USB or external hard drive and select "Delete".

Delete partition on external storage device

Step 2: Confirm the deletion

Click "OK" to confirm that you need to delete the partition on the selected device.

Confirm to delete partition on the external storage device

Step 3: Keep changes

Click the "Execute Operation" button at the top corner and save all changes by clicking "Apply".

Compelete deleting partition on SD/US/external hard drive

If you delete one or more partitions and keep the one with data, you can extend the partition with space left after deletion. While If you delete all the partitions, you can directly create a partition on your USB drive. 

How to Merge Partitions on USB Flash Drive in Windows 10

This method is only applicable when you have successfully created several partitions on your USB drive. To be exact, all the partitions should have drive letters and are normally accessible. If your USB drive shows only one partition in the File Explorer, you can just choose to delete the partitions instead of merging them.

If you have data on every partition, it is recommended that you merge the two or multiple partitions instead of deleting for data security. Then, how to merge USB partitions in Windows 10 without deleting? Let EaseUS Partition Master help you to make it. It supports combining two adjacent partitions with ease. 


Step 1: Install and launch EaseUS Partition Master on your PC

Right-click on the partition which you want to add space to and keep on the hard drive, and select "Merge".

Run EaseUS partition manager software

Step 2: Select partitions to merge

1. Select one partition next to the former selected partition.
2. And click "OK" to continue.

Select partitions to merge

Step 3: Merge partitions

1. Click the "Execute Operation" button at the top and then click "Apply".
2. The program will merge space and add files from the second partition to the first partition.

Select partitions to merge


When you happen to meet the USB has two or multiple partitions on your USB drive and want to keep only one, you can selectively delete or merge partitions. But whichever way you choose, we believe that EaseUS Partition Master is your best partition management tool because of its ease-to-use feature and perfect functions, as you can see from the above tutorials. Therefore, give it a try, and you won't be disappointed. 

Download Now

 Windows 10 is supported

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Frequently Asked Questions

Why Choose EaseUS Partition Master?

"I've used Partition Master Professional many times to create, delete, format, move, rename, and resize partitions."PCWorld

"Partitioning tools have come a very long since the days of complicated command line utilities and EASEUS Partition Master is one of the most advanced programs available."TECH ADVISOR

"I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes."Lifewire

Will the "Migrate OS" feature transfer the Windows system files only or the whole C drive?

To ensure that the migrated system will boot normally, the Migrate OS feature will transfer all the files in the system and the boot partitions. Generally, the boot partition is the C drive so the transfer will include all the files in C.

Does EaseUS Partition Master license apply to multiple computers?

The license of Partition Master Professional and Server editions can be used on 1 computer only, while that for for the Technician and Unlimited editions can be used on multiple machines.

What is the difference between EaseUS Partition Master Trial version and the Free version?

Free is for home users only, with most basic functions available such as partition resize and clone. While trial can help you understand how this product works and test what a full license can do on a business or server OS machine.

Will it cause any data loss after resizing the partition in EaseUS Partition Master?

Generally, it will not cause any data loss or boot issue by resizing a partition. However, in order to protect your data, we suggest that you backup the partition before resizing, in case of any unexpected situations such as power outages, computer hardware failures, etc. You can use EaseUS Todo Backup to backup the partition and its trial version is fully functioned for 30 days.

What should I prepare before resizing the partition?

On the partition that is going to be operated, there might be some files being occupied by other programs. To ensure a successful operation, we suggest that you close all the unnecessary software before resizing that partition. Otherwise, EaseUS Partition Master will detect the partition being locked by the other software and require a reboot to resize the partition under boot mode.

About EaseUS Partition Master

All-round disk & partition management software for personal and commercial use. Let it manage your storage drive: resize, format, delete, clone, convert, etc.

Video Tutorial

How to Partititon a Hard Drive on Windows 10/8/7