How to Resize USB Flash Drive Partition with Magic Partition Software

Jean updated on Sep 08, 2020 to Partition Master | How-to Articles

"I have a 4GB USB flash drive that I need to repartition. Partition Magic 8 doesn't even see it. Does anyone know of a program that will repartition USB flash drive?" The answer is yes. Partition software - EaseUS Partition Master can easily resize USB flash drive partition without data loss.

How to Resize USB Flash Drive Partition with EaseUS Partition Master

How to Increase USB Storage via More Tools

USB Flash Drive

There are two cases you may encounter when using the drive. The one is related to resize the USB partitions, and the other ties to increase the USB storage.

Case 1: Resize USB Partition in Windows 10

In general, it’s OK to create partitions on the USB flash drive. Unfortunately, because of the limitation of Microsoft, you can only see one partition of USB flash drive in Windows. It means you can adjust one partition on Windows. 

If the USB is indeed partitioned and can not access other partitions, you can use the partition tool to delete other partitions and extend the first partition. In the end, the entire USB flash drive has only one partition, and you can change this partition. You can resize the USB partition through the EaseUS Partition Master.

Case 2: Increase/Free Up USB Storage 

What makes us frustrated is that USB often shows insufficient space. Here we introduce some methods to give you a hand on how to increase USB storage. Before using either method, you’d better to back up important files first. 

USB Flash Drive Partition Software - EaseUS Partition Master

Disk partition software - EaseUS Partition Master supports not only hard disk and USB external hard disk but also supports removable storage device like USB flash drive and memory card, etc. It can repartition USB flash drive with advanced feature: resize/move partition, repartition hard drive, wipe USB flash drive partition to protect privacy, convert FAT file system to NTFS, copy USB flash drive, recover deleted or lost USB flash drive partition and some other basic features like format, create and delete, etc.

EaseUS Partition Master can support all popular Windows Operating System. EaseUS Partition Master Free Edition is free disk partition manager software for Windows home users, both 32 and 64-bit users。

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 Windows 10 is supported

How to Resize USB Flash Drive Partition with EaseUS Partition Master

Without the boost of Windows Disk Management, you can still resize (expand/shrink/create) USB partition through EaseUS Partition Master. Following is the step-by-step instructions of resizing USB flash drive partition.

Step 1. Launch EaseUS Partition Master on your PC.

Step 2. Free up space to extend partition.

If the hard drive has enough unallocated space to extend the target partition, jump to Step 3, and continue. If not, free up space first:

  • Right-click on a partition next to the target partition and select "Resize/Move".
  • Drag the partition ends to free up space, leaving enough unallocated space behind the target partition, click "OK".
free up disk space to get unallocated space

Step 3. Extend partition.

  • Right-click on the target partition and select "Resize/Move".
extend partition -1
  • Drag the target partition handle into the unallocated space to extend partition.
extend partition -2

Step 4. Keep all changes.

  • Click the "Execute Operation" button and click "Apply" to keep all changes.
extend partition -3

Besides partition manager for USB flash drive, EaseUS Partition Master provides Partition Recovery Wizard and Disk and Partition Copy Wizard features. It is a complete solution to solve your USB flash drive and partition problem.

How to Increase USB Storage via More Tools

Deleting files can not always work for the necessary data, so we are going to introduce some available methods for you. If your device is occupied with important files, in the former part, you can use the compress or delete function to free it up. But if it’s filled with unnecessary files, the format method in the latter part may be better.

Part 1. Increase USB storage while preserving data

1. Compress file size to increase USB storage

Compressing file is to compress one or more files so that its file size is smaller than the original file size. After compressing your folder, your USB’s downloading and transferring speed will be faster.

Step 1: Insert the USB to the computer.

Step 2: Right-click the file or folder and choose “send to”, choose “Compressed (zipped) folder”

compress folder

You also can use file compression software, like WinZip or WinRAR to compress data.

2. Delete unwanted hidden files

Step 1. Open Control Panel > Open File Explorer Options

Step 2. Click on View > Click on Show hidden files, folders, and drives

Step 3. Then you can start deleting the hidden files on the drive.

show hidden files

Part 2. Free up space without retaining data (Re-format USB flash drive with partition software)

You can free up space by Re-formatting the USB flash drive. But it will wipe all data of your USB. Before formatting the flash drive, we recommend back up all data at first.

Step 1: Select the USB drive to format.

Connect the USB drive or pen drive to your computer. Download and launch EaseUS partition software. Right-click the USB drive you intend to format and choose "Format".

Format Hard Drive Partition - Step 1

Step 2: Set the drive letter and file system.

Assign a new partition label, file system (NTFS/FAT32/EXT2/EXT3), and cluster size to the selected partition, then click "OK".

Format Hard Drive Partition - Step 2

Step 3: Check the warning box.

Click "OK" if you see the Warning window. If you have important data on it, back up the data in advance.

Format Hard Drive Partition - Step 3

Step 4: Apply the changes.

Click the "Execute operation" button first, and then click "Apply" to format the USB drive.

Format Hard Drive Partition - Step 4
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 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