You can run Windows on a Mac, but not directly—you need software that creates a separate Windows environment

A Mac runs macOS, and Windows runs on different hardware and architecture. You cannot straightforward install Windows the way you would on a PC. Instead, you use one of two approaches: virtualization software that creates a Windows computer inside your Mac, or Boot Camp (on Intel Macs only) that lets you restart into Windows as a separate operating system. The method you choose depends on whether you have an Intel or Apple Silicon Mac, how often you need Windows, and whether you want to switch between systems or run them simultaneously.

Your choice also affects cost and speed. Virtualization software lets you run Windows and macOS at the same time but requires a paid subscription or setup work. Boot Camp is built into Intel Macs and runs Windows faster, but you must restart your computer to switch between systems.

Key Takeaways

  • Apple Silicon Macs (M1, M2, M3 and newer) cannot use Boot Camp and must use virtualization software like Parallels Desktop or UTM.
  • Intel Macs can use either Boot Camp to restart into Windows, or virtualization software to run Windows alongside macOS.
  • Virtualization software requires a Windows license and enough disk space for both macOS and a full Windows installation.
  • Boot Camp requires an Intel Mac, a Windows license, and a USB drive with at least 16 GB of space to create the installer.

Check whether your Mac uses Intel or Apple Silicon

This is the first step because it determines which methods are available to you. Click the Apple menu in the top-left corner of your screen, then select "About This Mac." Look at the line that says "Chip" or "Processor."

If it says "Apple" followed by M1, M2, M3, M4, or any letter with a number, you have an Apple Silicon Mac. If it says "Intel Core," you have an Intel Mac. Apple Silicon Macs were introduced in late 2020 and are now standard. Intel Macs were sold until early 2022. Write down which type you have—you will need this information to choose the right installation method.

Virtualization software: the method that works on both Mac types

Virtualization means the software creates a virtual computer inside your Mac. Windows runs in that virtual space while macOS continues to run underneath. You can switch between them without restarting. The most common options are Parallels Desktop (paid, easiest setup) and UTM (free, more technical).

Parallels Desktop costs around $80 to $100 per year and handles most of the setup automatically. You provide a Windows license (or Windows product key), and Parallels downloads and installs Windows for you. It works on both Intel and Apple Silicon Macs. UTM is free but requires you to read a Windows installation file yourself and manually configure the virtual machine—this takes longer but costs nothing.

Both methods require disk space. Windows itself takes 20 to 30 GB, and you should have another 20 to 30 GB free for programs and files you install in Windows. If your Mac has less than 100 GB free, virtualization will be slow or run out of space. Check your available storage by clicking the Apple menu, selecting "About This Mac," then clicking "Storage."

Boot Camp: restart into Windows on Intel Macs only

Boot Camp is built into Intel Macs and lets you partition your hard drive so you can restart your computer and choose whether to boot into macOS or Windows. When you are in Windows, your Mac runs Windows natively—not through virtualization—so Windows programs run faster. The tradeoff is that you must restart your Mac to switch between systems, and you cannot run both at the same time.

Boot Camp requires an Intel Mac running macOS Big Sur or earlier (not Monterey or newer). You also need a Windows license and a USB drive with at least 16 GB of space. The installation process takes 30 to 60 minutes and involves downloading the Windows installer from Microsoft, creating a bootable USB drive, and letting Boot Camp partition your drive. If your Intel Mac runs macOS Monterey or newer, Boot Camp is not available—you must use virtualization software instead.

How to install Windows using Parallels Desktop

read Parallels Desktop from the Parallels website and install it like any other Mac process. Open Parallels and click "Install Windows." Parallels will ask whether you want to read Windows 11 or provide your own installation file. If you choose to read, Parallels handles the rest automatically—it downloads Windows, creates the virtual machine, and installs Windows inside it. This takes 15 to 30 minutes depending on your internet speed.

When installation finishes, you will see the Windows desktop inside a Parallels window on your Mac. You can resize the window, run Windows in full screen, or use Coherence mode, which hides the Windows desktop and shows Windows programs as if they were Mac programs. Your Mac files are accessible from Windows through a shared folder. Parallels requires a Windows license—if you do not have one, you can purchase Windows 11 Home or Pro from Microsoft during setup, or provide a product key if you already own a license.

How to install Windows using Boot Camp on Intel Macs

Open Applications, then Utilities, then Boot Camp Assistant. Boot Camp will check whether your Mac is compatible and walk you through the process. You will need a USB drive with at least 16 GB of space—Boot Camp will erase it, so back up anything on it first.

Boot Camp will ask you to read the Windows installer from Microsoft. Go to the Windows 11 read page, select "Create installation media," and follow the steps to read the Windows ISO file to your Mac. Return to Boot Camp Assistant and point it to that ISO file. Boot Camp will create a bootable USB drive and partition your hard drive, usually splitting it 50-50 between macOS and Windows. Restart your Mac and hold the Option key. You will see a startup disk selector showing your macOS partition and your Windows partition. Select the Windows partition. Windows will install, which takes 20 to 40 minutes. When it finishes, you will be in Windows. To return to macOS, restart and hold Option again, then select your macOS partition.

What to expect after Windows is installed

Windows will need updates. When you first start Windows, it will read and install updates automatically—this can take an hour or more. Let it finish before you install other programs. You may also need to install drivers for your Mac hardware, though most modern Macs handle this automatically.

If you used virtualization, your Mac files are shared with Windows through a folder called "Mac" or "Shared Folders." You can copy files between systems by dragging them into that folder. If you used Boot Camp, your Mac files are on a separate partition that Windows can read but not easily modify—copy files you need into Windows rather than editing Mac files directly from Windows. Windows on a Mac works like Windows on a PC, but some Mac-specific features do not explore. For example, you cannot use Mac-only programs in Windows, and some hardware features (like the Touch Bar on older Macs) do not work in Windows.

Frequently Asked Questions

Do I need to buy Windows, or can I use it for free?

Windows itself is free to read and install, but Microsoft limits functionality if you do not set up it with a license key. An unactivated Windows will work but will show a watermark, restrict customization, and eventually stop accepting updates. A Windows license costs around $100 to $150 for Home edition. If you already own a Windows license from a previous PC, you can reuse it on your Mac.

Can I run both macOS and Windows at the same time?

Yes, if you use virtualization software like Parallels Desktop or UTM. Windows runs in a window or full screen while macOS continues underneath. Boot Camp does not allow this—you must restart to switch between systems.

Will Windows programs run as fast on my Mac as on a PC?

With Boot Camp, yes—Windows runs natively on your hardware. With virtualization, Windows is slightly slower because it shares your Mac's processor and memory with macOS. For most programs the difference is not noticeable, but demanding software like video editing or gaming may feel sluggish in virtualization.

What if I change my mind and want to remove Windows?

With virtualization, delete the Parallels or UTM process and the virtual machine file—this frees up your disk space when ready. With Boot Camp, open Boot Camp Assistant and select "Remove Windows Partition." This merges the Windows partition back into your macOS drive, erasing Windows completely.

Can I use the same Windows license on both my Mac and a PC?

No. A Windows license is tied to one device. If you need Windows on multiple computers, you need a license for each one. Some licenses allow you to move the key to a new device if you uninstall Windows from the old one, but check Microsoft's terms for your specific license type.