Mac Tips

How to Solve Your Bootable USB drive Could Not be Created Error?

by Jenefey Aaron   Updated on 2021-12-22 / Update for  Mac OS

“Hello, I have MacBook Pro 13 inch, mid-2012 and I’m trying to install windows 10 on it which is currently running macOS Mojave but when I run Boot camp assistant with 36GB USB: it keeps telling me there is not enough space on the disk. I have already made several attempts but it’s not working. Can somebody help me with this please thanks.”

Mac by Apple is a pretty popular device which many users have opted for. However, there are many functionalities in Windows which the Mac users crave for. This is one of the reasons why several Mac users are trying to find out ways in which they can enjoy the benefits of both the operating systems. You can do this in simple ways which will be discussed below in this article.

However, many of them also face issues while installing Windows operating system on a Mac system. One such scenario is stated above. The most common problem faced by Mac users who are trying to download Windows operating system on a Mac system is the disk not having enough space or your bootable USB drive could not be created. If you are one of those users who are facing this issue, no need to worry! Below there are several ways listed in which you can sort out this problem.

Part 1: How to Install Windows on Mac?

Before learning about how to tackle the error of there is not enough space available on the disk, let’s have a look at how the Windows installation on Mac is done. The best way to install Windows on Mac is by using Boot Camp Assistant. However, there are a few things which you need to consider before doing this. First, check the system requirements and then buy Windows. Ensure that there is enough space on your hard disk and the system is updated with a backup prior to starting the Windows installation process. Once you are through with this, follow the steps below to know how to install Windows on Mac.

Step 1: From Microsoft’s official website, download the 64-bit Windows ISO.

Step 2: Quit all the open applications on your Mac system and go to the “Utilities” folder by accessing “Finder”.

utilities folder

Step 3: Launch “Boot Camp Assistant” and click on “Continue” option.

Step 4: From the “ISO Image Box”, click on “Choose” and locate the downloaded ISO file.

Step 5: Allocate space to the Windows partition by partitioning your hard drive. You can make use of the slider in order to do this.

disk partition

Step 6: Once this is done, click on “Install” and the Mac system will then boot to the Windows installer.

Step 7: During the Windows installation process, select “BOOTCAMP” as the drive.

Step 8: Make the necessary selections in the Windows installer to continue.

Step 9: Windows desktop with the “Boot Camp Installer” will be displayed in a new window.

boot camp installer

Step 10: Give the necessary permissions when prompted and click on “Yes” to reboot your system.

Step 11: Open the “Apple Software Update” from the “Start” menu at the bottom.

Step 12: Select the updates and click on “Install items” and click “Yes” when prompted.

software update

Step 13: Click on “OK” and your system will restart again with the Windows operating system.

This is how you can install Windows on your Mac by using Boot Camp Assistant. If you encounter an error of there is no enough space on the disk while the installation process, you can refer to the solutions given below.

Part 2: Top 5 Ways to Fix "Your Bootable USB Drive Could Not Be Created" Error

Although it is pretty simple to install the Windows operating system on your Mac system, the prerequisites have to be followed through before the installation process to avoid errors like there is not enough space on disk. Some users forget doing this and end up with errors of disk space. If an error of there is not enough space on the disk Windows 7 appears or if other errors occur during the installation process and you get an error message of bootable USB drive could not be created, you can try out some of the solutions given below.

Way 1: Check If The USB Drive Has Enough Capacity

Are you left wondering about how big of a flash drive do I need for Boot Camp?, how do I install Windows on Boot Camp?, do I need a USB drive for Boot Camp? And other such questions, worry not! Read on!

One of the very first things which you need to check before installing Windows is whether your Mac system has enough space to install Windows. If you haven’t done that earlier and have got the error there is not enough space on the disk, do it now and re-install the Windows operating system. Your Mac system needs a RAM of at least 2 GB or 4 GB and should be having a hard drive space of about 30 GB in order to run Boot Camp successfully and install Windows operating system. If your Mac does not have sufficient space, free up some space by deleting unwanted files and try installing Windows again.

Way 2: Update MacOS to The Latest Version

Another reason why you might be getting there is no enough space error while installing Windows on your Mac system may be that your MacOS is not updated to the latest version. You can update MacOS to the latest version in order to tackle the disk management there is not enough space available error by following the steps below.

Step 1: From the menu, go to “System Preferences” and click on “Software Update”.

Step 2: Click on the “Update Now” option to start updating your MacOS to the latest version.

update macos

After knowing and following how to tackle the error of not enough available space to create a volume, your MacOS will then be updated to the latest version and you can try installing Windows again.

Way 3: Install a Later Edition of Windows 10

The error of your bootable USB drive could not be created Boot Camp only supports Windows 7 or later during Windows installation on Mac system may be occurring because the version of Windows being installed might be an old one. In order to install a later edition of Windows 10, to overcome the error of the Startup Disk does not have enough space to be partitioned Mojave, follow the steps given below.

Step 1: Download the latest version of Windows from Microsoft’s official website.

Step 2: Go to the “Utilities” folder after this from “Finder”.

Step 3: Open the “Boot Camp Assistant” and click on “Continue”.

launch boot camp assistant

Step 4: Select the downloaded Windows ISO file and click on “Continue”.

Step 5: Partition the disk and follow the on-screen instructions to download a later version of Windows.

Now you will know how to resolve the error of Boot Camp Assistant no USB drive and other such errors.

Way 4: Unmount the ISO File

A common error which occurs while installing Windows on Mac system is that your bootable USB drive could not be created Boot Camp. In order to tackle this problem and other such errors like Boot Camp says "Not Enough Space on Startup Disk", you can unmount the ISO file. You can do this easily.

The mounted ISO is generally on the desktop of your system. All you have to do is right-click on it and click on “Eject” option.

Once this is done, launch “Boot Camp Assistant” and partition the hard drive in order to prepare the bootable USB drive. This way you can tackle Windows installation errors like Boot Camp Assistant Windows 10 USB not enough space.

Way 5: Build a Windows 10 Boot Camp USB Installer

If you have tried all the methods, but have found no luck in overcoming the error while installing Windows on Mac, you can try building a Windows 10 Boot Camp USB installer. You can do this by following the steps below.

Step 1: Find a USB drive which has more than 8 GB of space.

Step 2: Erase or format it as an MBR/FAT32 file.

format usb drive

Step 3: Go to Apple and download BC6 drivers into this USB drive.

Step 4: Copy all the Windows ISO files to this USB drive.

usb installer

Step 5: Use “Disk Utility” and generate a FAT32 partition.

Step 6: After this, boot your system from this USB drive and select the FAT32 partition as the destination and after that install Windows.

This would solve the issue of less disk space on your Mac system.

Extra Tip: How to Recover Deleted Files from USB Drive on Mac?

By now you will know how to tackle the error of less disk space on Mac system while installing Windows on it. However, there might be some data lost while trying out all these methods or while installing the Windows OS to Mac system. If in case you have lost any important data from your Mac system during this process, you can try recovering it by using Tenorshare 4DDiG for Mac Data Recovery software for Mac systems. This is a highly efficient software which has the ability to restore any formatted or deleted data from your Mac system.

Features of Tenorshare 4DDiG – Mac Data Recvoery:

  • Recover any kind of deleted or formatted data on Mac.
  • Restore any type of file from hard drive or any other external storage devices.
  • Data recovery rate is pretty high.
  • It is very reliable and 100% secure.

Steps to use Tenorshare 4DDiG for Mac Data Recovery:

Step 1After installing the software, select the drive from where you wish to recover deleted or formatted file and click on “Scan”.

select drive

Step 2Once the scan results are displayed, you can select the type of file which you wish to recover from the left column and click on “Recover”.

recover files

Step 3Select the location where you want to recover the selected files and click on “Open”.

restore location

The deleted and formatted files will then be restored to the specified location.


Although there are several users who wish to enjoy the experience of using Windows operating system on a Mac system, they do come across a few errors while the installation process. However, by referring to the pointers given above, you can easily overcome these errors and successfully install Windows operating system on Mac system. While doing this, if in case any of your data gets accidentally deleted, you can make use of Tenorshare 4DDiG for Mac Data Recovery to recover that data easily.