How to Install Windows 10 on A Mac without Bootcamp

Mac is a popular operating system (OS) among people who prioritize design and user experience. However, it is not immune to its drawbacks. The lack of compatibility with some applications is one example. Microsoft Windows, on the other hand, has more software compatibility and supports virtually every application out there. If you have a Mac computer and need to use some programs exclusive to Windows, you can either install a virtual machine or use Boot Camp to install Windows on your Mac. But Boot Camp is not the most efficient way to do this. In this tutorial, we will show you how to install Windows 10 on a Mac without using Boot Camp.

Video Tutorial:

What’s Needed

To complete this process, you will need the following:

  • A USB drive with at least 8 GB of storage capacity,
  • A Windows 10 ISO file,
  • A Mac computer running macOS High Sierra or later,
  • A stable internet connection,
  • Enough free storage space on your Mac’s hard drive,
  • A software named "WinToUSB," which we’ll explain more about in the next section.

What Requires Your Focus?

While following this tutorial, you should focus on the following:

  • Preparing the USB drive correctly, otherwise, the installation process might fail.
  • Choosing the appropriate Windows ISO file matching your Mac’s hardware.
  • Following the steps in the right order and not skipping any to avoid possible errors or corrupted files.

Method 1: Downloading WinToUSB

WinToUSB is a free software tool that allows you to create a bootable Windows USB drive without using Boot Camp. The software is easy to use and is the most efficient way to install Windows 10 on a Mac. To download and install WinToUSB,
follow these steps:

  1. Go to the WinToUSB website.
  2. Click on the "Download" button on the website’s home page.
  3. Choose the free version of the software (the first option) and click on the "Download" button for that option.
  4. Once downloaded, open the WinToUSB executable file to start the installation process.
  5. Follow the on-screen instructions to install the software onto your Mac.


  • WinToUSB is a free software tool.
  • It’s the most efficient way to install Windows on a Mac without using Boot Camp.
  • The installation process is straightforward and easy to follow.


  • WinToUSB might not work on some older Macs.
  • The USB drive needs to be formatted correctly, or the installation process might fail.
  • Some users have reported that WinToUSB can be slow on some Macs.

Method 2: Creating a Windows Partition

Another way to install Windows 10 on a Mac without Boot Camp is by creating a Windows partition on your Mac’s hard drive. This way, you can use the macOS Disk Utility tool to create a new partition and install Windows on it. Here are the steps:

  1. Open Spotlight Search by pressing "Command + Spacebar."
  2. Type "Disk Utility" in the search bar and open the application.
  3. Select your Mac’s hard drive from the list on the left-hand side of the Disk Utility window.
  4. Click on the "Partition" button at the top of the window.
  5. Click on the "+" button to create a new partition on the hard drive.
  6. Adjust the size of the new partition as needed to allocate space for Windows on your Mac:
    • Typically, 20-30 GB of space is sufficient for the Windows partition.
    • Make sure to leave enough free space on the macOS partition to avoid any performance issues.
  7. Once you have created the new partition, click on it and select "ExFAT" as the format type.
  8. Click on the "Apply" button and wait while the new partition is created.
  9. Once the partition is created, insert the Windows 10 installation USB drive into your Mac and restart your computer.
  10. While restarting, hold down the "Option" key to bring up the boot menu.
  11. Choose the Windows 10 USB drive from the list and press enter to start the installation process.
  12. Follow the on-screen instructions and select the newly created partition as the installation destination.
  13. Wait for the installation process to complete, and your Mac should now be able to run Windows 10.


  • You don’t need any additional software to complete this method.
  • It’s a very straightforward process if you’re used to creating partitions.
  • You can allocate as much or as little space to Windows as you like, depending on your needs.


  • The process can be risky as you’ll be partitioning your hard drive, which could result in data loss.
  • It’s a slightly more complicated process that requires a bit of knowledge beforehand about partitioning.
  • You need to purchase a Windows license to be able to run Windows on your Mac legally.

Method 3: Installing Windows via VirtualBox

VirtualBox is a virtual machine software that can run an operating system (such as Windows) inside another operating system (such as macOS). The software is free and can be downloaded from the VirtualBox website. Here are the steps to install Windows 10 on a Mac using VirtualBox:

  1. Download and install VirtualBox from the VirtualBox website.
  2. Download the Windows 10 ISO file from the Microsoft website.
  3. Open VirtualBox and click on the "New" button in the top left-hand corner of the application.
  4. Follow the on-screen instructions to create a new virtual machine and allocate the required resources (such as RAM and hard disk space).
  5. Select the Windows 10 ISO file as the bootable drive for the virtual machine.
  6. Start the virtual machine and follow the on-screen instructions to install Windows 10.


  • You don’t need to partition your hard drive.
  • You can run Windows 10 simultaneously with macOS, which is convenient if you only need to use Windows occasionally.
  • The installation process is straightforward, and you don’t have to worry about formatting a USB drive correctly.


  • You’ll need a lot of available RAM to run a virtual machine (at least 4 GB).
  • You’ll need to dedicate an appropriate amount of storage space on your hard drive to the virtual machine.
  • The virtual machine creates a "container" for Windows that’s isolated from your normal macOS environment, which could lead to performance issues and the need for adequate system specs.

Why Can’t I Install Windows 10 on My Mac?

If you find that you can’t successfully install Windows 10 on your Mac, it could be due to one or more of the following reasons:

1. Unsupported Mac hardware:

Not all Mac models support the same hardware. Some, particularly older models, don’t have the capacity to run more modern versions of Windows, which could make the implementation process impossible.


Double-check the minimum system requirements for your version of Windows 10 and make sure your Mac meets them. If your hardware can’t handle it, then you might be out of luck.

2. Incompatible Windows ISO:

If you’re using a Windows ISO file that isn’t compatible with your Mac’s hardware, the installation process may not work.


Make sure that you use a Windows ISO file that is compatible with your Mac’s hardware. Check with Microsoft to see which ISO version you need for your Mac.

3. Incorrect USB formatting:

If your USB drive isn’t formatted correctly, the installation process might fail.


Ensure that your USB drive is formatted correctly and has the correct file system (NTFS or FAT32, depending on the version of Windows you’re installing). You can use Disk Utility on your Mac to format the drive.

4. No administrator privileges:

Without administrator privileges on your Mac, it’s not possible to modify the system’s boot settings.


Ensure that you’re logged in as an administrator on your Mac. If you’re not, log out and log back in with an account that has admin privileges.

Implications and Recommendations

Installing Windows on a Mac comes with a few implications and considerations:

  • You need to purchase a Windows license.
  • The installation process requires a significant amount of disk space, so it’s essential to ensure that your Mac has enough free storage to accommodate the download, installation, and running of Windows 10.
  • Running Windows on a Mac could cause certain resources to become limited, leading to slower performance. If you have an older Mac model, this could be more noticeable than on newer models.
  • If you’re not very familiar with partitioning, it’s best to avoid the second method. However, WinToUSB is pretty easy to use for everyone.

5 FAQs About Installing Windows on a Mac Without Boot Camp

Q1. Do I need a license key to install Windows on my Mac?

A1. Yes. You’ll need to purchase a Windows license before you can install Windows on a Mac.

Q2. Can I still use macOS once I’ve installed Windows?

A2. Yes! If you install Windows via VirtualBox, you can switch between macOS and Windows without having to restart your computer every time.

Q3. How much disk space do I need for Windows 10?

A3. You’ll need at least 20-30 GB of free disk space to install Windows 10.

Q4. Will my Mac be slower after installing Windows?

A4. It depends on the type of Mac you have and how much memory it has. However, in most cases, there will be some performance reduction.

Q5. Can I use a USB drive with less than 8 GB of storage capacity?

A5. No. You need at least an 8 GB USB drive, as anything less would fail to accommodate all files needed for installation.

In Conclusion

In conclusion, installing Windows on a Mac without Boot Camp is possible and quite easy when using WinToUSB. If you don’t want to use Boot Camp, try out the three methods mentioned above and choose whichever is best for your situation. Just remember to ensure your Mac has enough storage and check compatibility before installing Windows.