Have you ever encountered cannot extend USB drive to unallocated space issue? Do you know the main reasons for this issue and how to deal with it? If you don't know, don't worry. This article will show you how to extend USB drive to unallocated space with a  free partition manager.

Here is a post about cannot extend USB drive to unallocated space issue we find on the internet:

My USB flash drive lost its space and now becomes smaller, so I want to extend it to an unallocated space. Therefore, I opened Disk Management and found an unallocated space, and I planned to add the space to the flash drive. Nevertheless, Extend Volume feature was grayed out so that I cannot extend USB drive to unallocated space. What’s the matter and how to solve this problem?

You can see that the above users can’t use Windows Disk Management to extend USB drive to unallocated space.

Why?

Why Cannot Extend USB to Unallocated Space?

Extend USB drive to unallocated space but failed in Disk Management issue can be caused by many reasons.

For example, if you are using Windows 10 version 1511, or the above versions, Windows Disk Management utility will not allow you to do USB partition operations. When you connect the USB to computer, you will see most features are unavailable.

Even if you are using Windows 10 Anniversary update or the later versions, Windows Disk Management can only manage NTFS partition and RAW partition.

See also: Fixed: Disk Management is Unable to Delete Volume on USB Flash Drive

You can see that there are so many limitations in the Windows Disk Management. In this situation, you need to use a free partition manager. MiniTool Partition Wizard is a perfect choice.

With this software, you don’t have to worry about so many limitations. And this software can solve cannot extend USB drive to unallocated space issue easily.

Now let’s see how it works for extending USB to unallocated space.

How to Extend USB to Unallocated Space with MiniTool Partition Wizard

MiniTool Partition Wizard is a professional partition manager which can be a great assistant on the issue cannot extend USB to unallocated space. What’s more, it has not only the function Extend Partition, but also features like Copy Partition, Partition Recovery, and so on.

To extend USB drive, you only need Extend Partition feature, and luckily it is available in the free edition of this tool. Click the button blow to get it.

MiniTool Partition Wizard FreeClick to Download100%Clean & Safe

Now you can follow the guide below to expand USB drive without data loss.

Step 1: Install this program on your computer.

Step 2: Connect the USB flash drive to the computer, and launch the program to its main interface: choose Launch Application after double-clicking on the program.

Step 3: Select the USB drive and choose Extend Partition from the left action panel.

choose a way to start extend USB drive

Step 4: Then you will enter the setting interface. Open the drop-down list of Take Free Space fromand choose unallocated space to take free space from. No matter where the unallocated space locates, you can expand USB drive without data loss.

Then, drag the sliding handle leftwards or rightwards to decide how much space to take, with the USB partition size changing intuitively. After that, click OK to continue.

decide how much size to take from

Step 5: You will then be back to the main interface of the software and you can preview the extended USB partition. If it is satisfying, click Apply to save the change.

click Apply to save the change

Now cannot extend USB drive to unallocated space issue is solved successfully. With MiniTool Partition Wizard, only a few steps can extend the USB without losing data.

So, you can see if you want to extend USB drive to unallocated space, MiniTool Partition Wizard is the best choice for it is easy (has no limitation like Disk Management), safe (does not need to delete or format anything), and free! Just get one and solve the problem!

“MiniTool Partition Wizard helps me to extend my USB successfully which I cannot manage it with the Windows built-in disk partition tool Disk Management. Hope this post can help more people who have the same problem.”Click to Tweet

Conclusion

When you extend USB drive to unallocated space but failed, using MiniTool Partition Wizard is a wise choice. This software expands the USB drive regardless of the partition type or where the unallocated space is located. It is believed that you would never regret using it.

Besides, if you have any problems during using MiniTool Partition Wizard, you can connect us via [email protected] to let us know. Meanwhile, if you have any better idea about cannot extend USB drive to unallocated space issue, welcome to share with us on the commend zone.

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