How to Resize USB Flash Drive Partition with Magic Partition Software

Updated by

Tracy King 

Written by

Jean 

Updated on Dec 07, 2024

"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。

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: Locate and select the target drive/partition

Launch EaseUS Partition Master and go to Partition Manager, select the target drive/partition to adjust its size, right-click on it and choose "Resize/Move".

Step 2: Resize or move the partition

1.To shrink the partition, simply drag one of its ends to free up unallocated space. Once done, click "OK". 

2. To extend the partition, make sure that there is unallocated space aside (if there isn't, follow the above steps to create some). In the same way, drag your mouse into the unallocated space. Click "OK".

3. To move a partition position, you need to leave unallocated space next to the target partition. If no, free up some unallocated space first.

Right-click the target partition, select "Reize/Move". Then drag the whole partition leftward or rightward to adjust its position. Click "OK" to confirm. 

Step 3: Confirm the result and apply changes

At this step, you will see the new disk partition information & diagram.

To save changes, click the "Execute Task" button and then "Apply".

Video Tutorial: Resize USB Partition via EaseUS Partition Master

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”

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.

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".

Step 2. Set the drive letter and file system on USB.

Assign a new partition label, file system (NTFS/FAT32/EXT2/EXT3/EXT4/exFAT), and cluster size to the selected partition, then click "OK".

Step 3. Check "Yes" to confirm formatting USB.

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

Step 4. Apply the changes.

Click the "Execute 1 Task(s)" button first, and then click "Apply" to format the USB drive.