By Emily / Last Updated October 14, 2019

Cannot delete Volume on USB

I am in Computer Management. I am the owner of the USB volume, there is no sharing, the partition is empty, and I can't delete it since the Delete Volume option is greyed out. So why it happens and how can I delete it successfully? Any ideas, thanks a lot!

Cannot Delete Volume

Why cannot remove volume on USB drive via Disk Management?

Deleting the volume on USB flash drive is usually considered as an effective way to free up disk space, clean the disk or fix some other disk errors. But sometimes it can be a tough task since the “Delete Volume” is unclickable in Disk Management. That’s mainly because the USB flash drive is considered as a removable media by computer and Disk Management can’t delete this kind of partition.

How to successfully delete volume from USB drive in Windows 10/8/7?

In order to help you easily remove partitions from USB flash drive and other data storage media, we gather the following two methods. If there are some important files in this partition you will delete, please make a backup first via free AOMEI Backupper.

Method 1. Delete volume from USB using DiskPart

DiskPart is a command-line utility Windows operating system offers. With the DiskPart, you can remove the write-protection from USB, create primary partition and more. So when the Disk Management cannot delete volume on USB drive, DiskPart is a nice alternative.

To delete a partition on USB with DiskPart:

First of all, type cmd in “Search” box, right click CMD.exe and run it as administrator to enter CMD window, then input the following commands (each typing ends with hitting on “Enter”).

  • diskpart

  • list disk: all the hard drives on your computer will be displayed.

  • select disk n: n stands for the disk number of your USB (here we take disk 1 as example).

  • list partition: a list of all the partitions on the USB will appear.

  • select partition n: n is the number of the partition you want to delete (ex: partition 1)

  • delete partition

Delete Partition Diskpart

If you want to delete all the partitions on the disk, just retype selection partition number and delete partition. After deleting every partition, you need to type “create partition primary” and hit enter.

WARNING: DiskPart is a command based program, so it is easy for computer users, especially the newbies, to make mistaken operation. If you type a wrong disk or partition number, you will lose everything on it.

Method 2. Easily remove partition from USB drive via AOMEI Partition Assistant

For those who want to delete partition from USB drive easily, we would like to recommend a GUI tool- AOMEI Partition Assistant Standard. This freeware can help you easily delete partition from USB drives and other external hard drives in Windows 10/8/8.1/7, Vista and XP. Besides, it can even remove recovery partition as well as delete EFI system partition on disks.

To delete volume on USB via AOMEI Partition Assistant:

Step 1. Download the freeware and connect your USB to a Windows computer (make sure it is detected). Install and launch the software. Right click the partition you want to delete, and choose “Delete Partition”.

Delete USB Partition

Step 2. Choose one way of deleting the partition, and click “OK”.

Deletion Method

Step 3. Back to the main interface, hit on “Apply” and “Proceed” to begin to delete USB partition.


Final Words

Now you would know what to do when the Disk Management cannot delete volume on USB. Both Diskpart and AOMEI Partition Assistant are great tools to help manage disk partitions like deleting hidden partition on USB drive. But AOMEI Partition Assistant is more versatile since it can also copy/merge/move/resize/wipe partition.

If you upgrade to Professional edition, you can enjoy more amazing functions like splitting partitions, cloning Windows partition, migrating OS drive between MBR and GPT disks and more.