Cannot delete partition on USB flash drive
“I’m using a Dell computer with Windows 10 installed on. I insert a 32GB USB flash
drive with two partitions into the computer and want to restore it to single
partition. But When try to delete partition on USB flash drive, I find that the option of Delete Volume greyed out. Can you tell me how to resolve this problem? Thanks!”
Two Ways to delete partition on USB flash drive
Usually, Disk Management won’t allow you delete on
removable media like USB flash drive. You can’t shrink or extend volume on it as well. But don’t worry, here offers you two ways to remove partition on USB flash
drive or SD card.
▶ Delete partition on USB drive Diskpart utility
▶ Delete USB flash drive partition using a third-party GUI partition manager
Delete partition on USB drive Diskpart utility
You cannot delete partition on USB flash drive or SD card within Disk Management, but you are able to remove partition using Diskpart utility. Take deleting partition on
USB flash drive in Windows 10 for example and do as follows:
1. Go to Diskpart window by pressing Windows+R simultaneously, typing diskpart and hitting Enter.
2. In pop-up window, type commands given below in order and
hit Enter key after every command.
PS.: “n” is the number of the USB flash drive and “m” is the
number of the partition on USB flash drive that you want to remove. Don’t type wrong
As what mentioned above, you can’t extend partition on USB flash drive within Disk
Management. Thus, you can extend USB flash drive partition via Diskpart utility by
following the steps listed below:
select disk x, “x” refers to the number of the USB flash drive
select partition y, “y” is the number of the partition on USB flash drive
that you want to extend.
Note: You can’t extend USB flash drive partition if it is not
formatted with NTFS but with FAT32.
Delete USB flash drive partition using a
third-party GUI partition manager
Diskpart utility can help you to effectively remove USB flash drive partition. But
there are chances that you will select improper disk or partition, causing data
In such a condition, it is highly recommended to employ a GUI partition manager for USB
flash drive or SD card – AOMEI Partition Assistant Standard. It is easy to handle and can work with Windows
10/8.1/8/7, XP, or Vista. Apart from deleting partition on USB flash drive, it allows you to extend FAT32 partition on it. Free
download it and have a look at how it works:
Step 1. Install and fire up it. Locate the USB flash drive partition that you want to delete, right-click it and choose Delete Partition.
Step 2. In the pop-up window, choose Delete Partition
Quickly (delete partition without wiping data) and click on OK.
Step 3. In the main interface, you can review the result of this operation. Confirm it and click Apply.
Note: If you want to securely erase flash drive to wipe data completely, you can right-click it and choose Wipe Hard Drive.
After a while, the partition on USB flash drive will be deleted. You can right-click
the existing partition on USB flash drive and choose Resize
Partition to extend it.
In Disk Management, you cannot delete partition on removable media like USB flash
drive. In such circumstance, you can use Diskpart utility or AOMEI Partition
Assistant Standard, a GUI tool, to complete such task. To recover lost partition on USB flash drive, clone system disk to GPT SSD or split partition, you can upgrade to AOMEI Partition