USB Storage Is Running Out of Space? Fix It Now!

Is your USB storage running out of space unexpectedly? Don’t worry — this guide will help you quickly identify what's taking up space on your USB drive and show you how to free it up effortlessly.

Gia

By Gia / Updated on May 22, 2025

Share this: instagram reddit

Is Your USB Storage Running Out of Space?

It's a familiar scenario: you plug in your USB drive, ready to save an important document or transfer a batch of photos, only to be greeted by that dreaded "Disk Full" message. This means your USB storage is running out of space, and often at the worst possible moment.

Whether you're backing up files, sharing media with a friend, or moving data between devices, running out of space on a USB drive can be a real inconvenience. Fortunately, there are simple and effective ways to free up space and keep your USB drive running smoothly. Keep reading to discover practical solutions.

4 Solutions for USB Running Out of Space

This section introduces four proven methods to free up space on your USB drive. Choose the one that best fits your situation and get your drive back in shape.

Solution 1. Delete Unnecessary Files

The most direct and often the quickest way to fix a USB that's running out of space is to delete files you no longer need. Over time, it's easy to accumulate unnecessary data on your drive. Taking just a few minutes to review your USB and remove outdated or useless files can free up a surprising amount of storage.

Step 1: Plug your USB flash drive into your computer.

Step 2: Open the USB drive from File Explorer and locate the files you want to remove.

Step 3: Right-click the selected files and choose Delete from the menu. Alternatively, you can press the Delete key on your keyboard.

Delete files File Explorer

Step 4: After deleting files, remember to empty the Recycle Bin to free up disk space.

Solution 2. Format Your USB Drive

If your USB drive is running out of space due to file system corruption or slow performance, formatting it is an effective solution. This process deletes all data and rebuilds the file system, restoring the USB to a “like new” state with maximum available storage.

For a reliable and user-friendly formatting experience, we recommend using AOMEI Partition Assistant. This powerful tool offers a wide range of disk management features for Windows users, including disk formatting and cloning, partition resizing, bad sector testing, and more. It’s an excellent choice for improving your USB management experience.

Follow these steps to format your USB drive using AOMEI Partition Assistant:

Step 1. Launch AOMEI Partition Assistant, right-click on the drive on the main interface, and choose “Format Partition”.

Format Partition 64gb

Step 2. In the pop-up window, choose a file system as needed and click “OK”.

Select File System 64gb

Step 3. Click “Apply” and to start the formatting. Then wait for a while, your USB drive will be formatted.

Apply Proceed 64gb

Tips: While formatting deletes all data on your USB drive, it is still possible to recover data after format. To prevent potential privacy leaks, it’s recommended to completely wipe the USB drive to make the data unrecoverable.

Solution 3. Check for Hidden Files

Sometimes, your USB storage is running out of space, not because of files you actively put there, but because of hidden files or folders. These can include system files, temporary data, or even files hidden by malware. Follow these steps to free up space on your USB:

Step 1: Plug your USB drive into your computer.

Step 2: Open the USB drive from File Explorer and locate the files you want to remove, such as:

Step 3: Click on the View tab at the top.

Step 4: In the Show/hide group, check the box next to Hidden items. You should immediately see hidden files and folders appear on your USB drive.

Hidden Items

Step 5: Carefully examine these newly visible files. If you find large, unnecessary hidden files, you can right-click and delete them.

Solution 4. Upgrade Files to Cloud

If your USB drive contains important files you don’t want to delete, uploading them to the cloud is a safe and effective option. Services like Google Drive, OneDrive, and Dropbox are widely used for cloud storage. Most of these platforms offer a generous amount of free storage with options to upgrade if needed. By moving your files to the cloud, you not only free up space on your USB drive but also ensure your data is protected from physical damage or loss.

Final Thoughts

If your USB storage is running out of space, take it easy! There’s always a practical solution to restore your drive’s functionality. By applying the methods outlined above, you can not only regain valuable storage but also optimize your USB drive for better performance. 

Gia
Gia · Staff Editor
Gia is an editor of AOMEI Technology. She possesses comprehensive expertise in resolving common computer challenges. Her methodical training equips her to craft articles that have provided indispensable guidance to countless users grappling with technical issues.