For many computer users, choosing between macOS and Windows can feel unnecessary. macOS offers a polished experience, strong integration with Apple hardware, and a familiar environment for creative and productivity work. Windows, meanwhile, remains popular for business applications, gaming, specialized software, and tools that are not available on macOS.
The good news is that compatible Mac computers can run both operating systems on the same machine. One of the traditional ways to do this is through Boot Camp Assistant, which creates a separate Windows partition on an Intel-based Mac. After installation, you can choose whether to start the computer in macOS or Windows.
However, there is an important consideration today: Microsoft officially ended Windows 10 support on October 14, 2025. Windows 10 can still run, but it no longer receives normal free security updates or technical support from Microsoft.
With that in mind, here is how dual-booting works and what you should consider before setting it up.
What Does Running Two Operating Systems Mean?
Running macOS and Windows on the same computer is commonly known as a dual-boot setup.
Instead of running both operating systems simultaneously, your Mac stores each operating system separately. When you restart the computer, you choose which one you want to use.
For example, you might use macOS for:
- Everyday browsing and productivity
- Creative applications
- Apple-specific software
- Personal projects
You could then switch to Windows when you need:
- Windows-only applications
- Certain business software
- Older Windows programs
- Software testing
- Applications that work better in a Windows environment
The main advantage is that each operating system gets direct access to the computer’s hardware when it is running.
Can Every Mac Run Windows 10?
No. This is one of the most important things to check before starting.
Apple’s Boot Camp documentation supports Windows 10 installation on Intel-based Mac models. Compatible models include certain MacBook, MacBook Air, MacBook Pro, Mac mini, iMac, iMac Pro, and Mac Pro systems. Apple specifically excludes Apple-silicon models such as the M1 MacBook Air and M1 MacBook Pro from this Boot Camp method.
This means you should first determine whether your Mac uses an Intel processor.
If your Mac uses Apple silicon, such as an M1, M2, M3, or newer Apple chip, the traditional Boot Camp approach is not available.
What You Need Before Installation
Before installing Windows, prepare your Mac carefully. A dual-boot installation changes the storage layout, so having a current backup is strongly recommended.
For a supported Intel Mac, you generally need:
- A compatible Intel-based Mac
- A 64-bit Windows 10 ISO or installation media
- Enough free storage
- A backup of important files
- Boot Camp Assistant
- An external USB drive for Mac models that require one
Apple currently recommends at least 64 GB of free storage, while 128 GB or more provides a better experience and gives Windows more room for updates and applications.
Older supported Macs may also require a USB flash drive of at least 16 GB during the installation process.
How Boot Camp Works
Boot Camp Assistant is Apple’s built-in utility for installing Windows on supported Intel Macs.
Rather than replacing macOS, Boot Camp creates a separate partition for Windows. This partition is commonly identified as BOOTCAMP during installation.
The basic process looks like this:
- Back up your important Mac files.
- Update macOS.
- Obtain a Windows 10 ISO file.
- Open Boot Camp Assistant.
- Select the Windows ISO.
- Allocate storage for Windows.
- Allow Boot Camp to create the Windows partition.
- Complete the Windows installation.
- Install Apple’s Windows support software and drivers.
- Restart and choose between macOS and Windows.
Apple’s current Boot Camp instructions specifically recommend updating macOS before beginning the installation.
Creating the Windows Partition
During the Boot Camp setup, you will be asked how much storage should be assigned to Windows.
This decision matters because the allocated space becomes the Windows partition. Apple notes that the partition size cannot simply be resized later through the normal Boot Camp process.
Think about how you plan to use Windows before choosing the size.
If you only need Windows for a few lightweight applications, you may not need as much space. If you plan to install large applications, games, development tools, or substantial files, you will need considerably more.
It is better to plan the storage requirement before installation rather than discovering later that Windows has run out of room.
Installing Windows
Once Boot Camp prepares the partition, the Mac restarts and launches the Windows installer.
When Windows asks where it should be installed, select the BOOTCAMP partition.
Be careful at this stage. Choosing the wrong partition can put your existing macOS data at risk. Apple’s installation instructions specifically warn users not to delete or modify other partitions during the Windows installation process.
After Windows finishes installing, the Mac normally starts in Windows.
Don’t Forget the Boot Camp Drivers
Installing Windows itself is only part of the process.
Your Mac’s keyboard, trackpad, display, audio, Wi-Fi, Bluetooth, camera, and other hardware may require Apple’s Windows support software to work correctly.
Boot Camp normally installs the necessary drivers after Windows installation. Apple also provides instructions for manually installing the Windows support software if the automatic installer does not appear or if hardware functions are missing.
If something such as the trackpad, speakers, camera, screen resolution, or wireless connection does not work properly, checking the Boot Camp drivers should be one of your first troubleshooting steps.
How to Switch Between macOS and Windows
One of the useful parts of a dual-boot setup is that switching operating systems is straightforward.
Restart the Mac and hold the Option (⌥) key during startup. You can then choose the macOS startup volume or the Windows Boot Camp volume.
You can also configure the default startup operating system from macOS through the Startup Disk settings.
This means you can make macOS the normal environment and switch to Windows only when you actually need it.
Advantages of a Dual-Boot Mac
A dual-boot configuration can still be useful in certain situations.
Access to Windows-Only Software
Some applications are designed specifically for Windows. Installing Windows directly gives you access to those programs without needing another computer.
Separate Operating Environments
macOS and Windows remain separate environments. You can choose the operating system that best fits the task you are working on.
Direct Hardware Performance
Unlike virtualization, a traditional Boot Camp installation starts Windows directly on the Mac hardware. This can make it useful for workloads where hardware performance matters.
Useful for Testing
Developers, designers, and technical users may want to test websites, applications, or workflows in both operating systems.
Limitations to Consider
Dual-booting is not perfect.
The first limitation is storage. Windows needs its own partition, which reduces the amount of storage available to macOS.
You also need to restart the computer whenever you want to switch operating systems. You cannot simply move between macOS and Windows without rebooting when using the traditional Boot Camp approach.
There is also the question of software support. Windows 10 is now outside Microsoft’s standard support lifecycle. Microsoft recommends moving to Windows 11 on compatible hardware or considering its available extended-security options for eligible Windows 10 devices.
What About Newer Apple Silicon Macs?
This is where things become different.
Traditional Boot Camp is designed for Intel-based Macs. Apple’s current documentation states that Boot Camp can install Windows 10 on Intel-based Mac computers.
Modern Macs built around Apple’s own silicon chips require a different approach if you want to run Windows.
Therefore, if you have an M-series Mac, do not follow an old Boot Camp tutorial expecting the same installation process to work.
Is Dual-Booting Still Worth It?
For an older Intel Mac that already supports Boot Camp, dual-booting can still be practical if you have a specific reason to use Windows.
However, the end of Windows 10 support changes the equation. If your goal is to maintain a secure Windows environment for everyday use, you should consider whether your hardware and software requirements allow you to move to a supported Windows version instead.
For users who simply need occasional access to a Windows application, virtualization or another supported Windows environment may be more convenient than maintaining a dedicated Windows partition.
Final Thoughts
Running macOS and Windows on the same computer can give compatible Intel-based Mac users the flexibility of two operating systems without purchasing two separate machines.
Boot Camp makes the process relatively straightforward: create a Windows partition, install Windows, add the necessary Apple drivers, and select your preferred operating system whenever the Mac starts.
The biggest consideration in 2026 is no longer simply whether Windows 10 can be installed. It is whether using an unsupported operating system makes sense for your needs. If you already have an Intel Mac and need Windows for a specific task, a dual-boot setup may still have a place. For long-term everyday use, however, choosing a currently supported Windows environment is the safer direction.
Before making any changes to your Mac’s storage, always back up important data and verify that your specific Mac model is supported.
Frequently Asked Questions
1. Can I run macOS and Windows 10 on the same Mac?
Yes. Compatible Intel-based Mac computers can run macOS and Windows 10 through Apple’s Boot Camp Assistant, allowing you to select the operating system when starting the Mac.
2. Can I use Boot Camp on an M1 or newer Apple silicon Mac?
Traditional Boot Camp is designed for Intel-based Macs. Apple silicon Macs such as M1, M2, M3, and later models do not support the traditional Boot Camp installation method.
3. How do I switch between macOS and Windows?
Restart your Mac and hold the Option (⌥) key during startup. You can then choose either the macOS startup disk or the Windows Boot Camp partition.
4. Is Windows 10 still supported?
Microsoft ended standard support for Windows 10 on October 14, 2025. Windows 10 can still run, but users should consider supported Windows versions or available security options for long-term use.
