The Best Free Windows Emulators for Mac in 2026

The best free Windows emulator for Mac in 2026 is VMware Fusion Pro, which Broadcom made free for personal and commercial use in November 2024 and which downloads Windows 11 ARM from Microsoft on Apple Silicon. UTM, VirtualBox and Wine-based tools are the free alternatives, and we compare all of them below.

1. VMware Fusion Pro: free, Intel and Apple Silicon, fetches Windows 11 ARM itself.
2. UTM: open source, runs ARM Windows fast and other systems through emulation.
3. VirtualBox: free; Intel first, Apple Silicon support since version 7.2.
4. Wine, Whisky and CrossOver: run some Windows programs without Windows.
5. Parallels Desktop: the paid option, listed for comparison.

Intel Macs get even more options, VirtualBox included. Both kinds of Mac can run it, and the gotchas you’d hit are very different on each.

One thing most guides bury: the standard Windows ISO from Microsoft won’t install on Apple Silicon. You need the ARM64 build. Setups on M-series Macs fail over this more than anything else.

A quick comparison of every free Windows emulator for Mac

The table covers every tool worth considering if you want to run Windows without paying. Fusion and UTM rows? Taken from the vendors’ own pages. For VirtualBox on Apple Silicon we go by Oracle’s changelog.

VMware Fusion Pro, the top pick

VMware Fusion Pro went completely free on November 11, 2024. Broadcom dropped the 200 USD price tag. That covers personal and commercial use, and schools too.

The current release is Fusion Pro 25H2. Broadcom dropped the old 13.x numbers for Microsoft-style year-half names.

Why we keep recommending it

Mostly because the built-in Windows 11 downloader just works. Click Get Windows from Microsoft on first launch, and Fusion does the rest.

• It fetches the right ARM ISO.
• It sets up the TPM key.
• It flips Secure Boot on.
• It hands you a working VM at the end.

No hunting across Microsoft’s labyrinth of download pages. That alone can save most of an hour.

The other thing is display scaling. Resize the VM window, and Windows adjusts on the fly. It sounds trivial until you’ve squinted at a blurry VM stuck at 1024×768 on a Retina panel.

Then there’s 3D acceleration. Fusion maps Metal to DirectX 11 and gives the VM up to 8 GB of video memory by default. Even Office animations feel snappy.

What Windows 11 asks of the VM

Those are Microsoft’s floor values, not a comfort level. On Apple Silicon the guest runs natively on the Arm cores, so the VM doesn’t pay for emulation. Plenty for office work, development and heavy browsing.

AAA games aren’t happening. For actual work, though, a VM isn’t the bottleneck anymore.

The Broadcom download maze

This part is the worst of it. To get Fusion you register a Broadcom account at profile.broadcom.com and verify your email.

Then comes the support portal, and a download page that loves to bury the Mac build. Plan some time for clicking around.

Keep the DMG somewhere safe once you find it. The portal really is that confusing.

System requirements

The universal binary doesn’t run x86 Windows on Apple Silicon, or the reverse on Intel. Old Intel-only apps still have a chance, though.

Windows 11 ARM has a built-in x86 translation layer, a bit like Rosetta 2 for Intel Mac apps. It works for a surprising amount of software.

How to set up a free Windows emulator for Mac with VMware Fusion

Never set up a VM before? It sounds scarier than it is. Plan on about 25 minutes. Most of that is Windows quietly installing itself while you do something else.

1. Register at profile.broadcom.com with a working email address. Check spam for the verification code.
2. Sign in, go to My Downloads and search for “VMware Fusion”. Grab the universal DMG.
3. Open the DMG, drag VMware Fusion to Applications and launch it. macOS asks for your admin password once.
4. On the first-run screen, click Get Windows from Microsoft, then Continue twice.
5. Fusion downloads the Windows 11 ARM ISO. Keep this file, because future VMs can reuse it.
6. Click Customize Settings before finishing, and use the values from the table below.
7. Save the VM, start it and let Windows install. That takes about 15 minutes.
8. After first boot, accept the VMware Tools prompt.

That’s the full setup. A Windows 11 key you already own goes in during setup.

Otherwise the VM runs unactivated, with the Activate Windows watermark, until you activate.

For the full picture, dual-boot on older Intel hardware included, see our Windows 11 on Mac cross-platform guide.

We compare both directions, Windows on a Mac and macOS on a PC. The second one lives in our Mac emulator for Windows guide.

Three tweaks that speed up the VM

Out of all the possible settings, a short list is worth keeping. Not tuning-forum folklore. Things you can feel.

1. Turn off Windows animations. Inside Windows 11: Settings, Accessibility, Visual Effects, Animation effects off. The interface responds noticeably faster on M-series Macs.
2. Disable Defender real-time scanning inside the VM. Only if you don’t browse risky sites in there. It reads every disk operation through the virtualization layer and burns CPU.
3. Use a fixed-size virtual disk. Fusion calls this “Preallocate disk space” in the VM settings. Dynamic disks are convenient, and every write involves a metadata update. Fixed disks are faster for heavy I/O.

Windows 11 setup without a Microsoft account

Windows 11 setup keeps pushing you into a Microsoft account. Annoying, when all you want is a throwaway local account for a VM.

For years a small ritual got around it. Press Shift + F10 on the sign-in screen, type the line below and press Enter. After a reboot the “we don’t have internet” option came back.

oobe\BypassNRO.cmd

That trick is mostly gone now. Current Windows 11 media, version 25H2 with build 26200 included, no longer runs the script reliably.

Microsoft has said it’s removing the known local-account workarounds from setup. That includes this one, in newer Insider builds:

start ms-cxh:localonly

Two routes still hold up.

• Sign in with a Microsoft account. Then go to Settings, Accounts, Your info and pick “Sign in with a local account instead”.
• Build the VM from an unattended answer file that creates a local account.

A cat-and-mouse game, as always.

Sharing files between macOS and the Windows VM

The first thing everyone asks about once the VM is running. In Fusion: Virtual Machine menu, Settings, Sharing. Turn on Shared Folders and pick which Mac folders the VM gets to see.

Inside Windows they show up as a network drive:

\\vmware-host\Shared Folders

Drag-and-drop also works once VMware Tools are installed. It can choke on files over 4 GB.

UTM is rougher. You set up a shared directory through SPICE, and Windows treats it as a normal drive. Drag-and-drop doesn’t really work there. You copy through the shared folder.

For a one-off file, emailing it to yourself is honestly faster. A bit of a hack, but it works.

Clipboard sharing

It’s supposed to work in both tools. It only does after the guest tools finish installing on the Windows side: VMware Tools, or the SPICE Guest Tools.

Copy-paste between Mac and Windows silently failing? That’s almost certainly why. Reinstall the tools, reboot the VM. Sorted.

UTM, the open-source Windows emulator for Mac

UTM runs on QEMU and was built just for macOS.

The developer releases it free at mac.getutm.app. The Mac App Store version costs 9.99 USD and adds auto-updates. Otherwise the two are identical.

The current line is UTM 5, built on a newer QEMU. Version 5.0.7 landed in October 2026.

On an M-series Mac, UTM uses Apple’s Hypervisor framework to run Windows 11 ARM. That puts it at roughly the same speed as Fusion. On Intel Macs it runs regular x86 Windows.

The unusual thing, and the reason some people swear by it: UTM can also emulate x86 on Apple Silicon. Got one Intel-only Windows app that refuses to die? This is the only free path.

It’s slow. Dial-up-modem-of-virtualization slow. It boots and it runs, though, and that’s more than VMware or Parallels will do for that case.

Where UTM loses to Fusion

Polish. The Windows installer doesn’t auto-download, so you fetch the ARM ISO from Microsoft yourself. It’s a direct download, about 6.8 GB. No Insider account needed anymore.

Then comes the VM creation wizard. It’s friendlier than raw QEMU command lines, and it still assumes you know what a boot ISO is.

The bigger caveat is 3D GPU acceleration for Windows guests. It’s still experimental. For years Windows got none at all. UTM 5 added an experimental 3D driver in its guest tools, and Linux guests have had OpenGL acceleration for longer.

So we’d skip UTM for games. It’s fine for Office, browsers, development work and IT tooling.

Setting up Windows 11 in UTM

1. Download the Windows 11 ARM ISO from microsoft.com/software-download/windows11arm64.
2. Open UTM, click the plus button and pick Virtualize, then Windows.
3. Allocate RAM and CPU cores. A VM with 8 GB is comfortable. Windows 11 refuses to install with fewer than 2 cores.
4. Check both “Install Windows 10 or higher” and “Install drivers and SPICE tools”. Browse to the ARM ISO.
5. Set the disk size to at least 64 GB and save the VM.
6. Hit the play button. Press any key when prompted to boot from CD.
7. Let Windows install. Then run the UTM Guest Tools setup from the virtual CD drive, for the display drivers.

Miss the prompt, and you land at a Shell> prompt. Type this and press Enter to recover:

exit

VirtualBox: Intel first, Apple Silicon since 7.2

VirtualBox is Oracle’s free hypervisor. On Windows and Linux it’s been the workhorse for over a decade. For a long time it had one big gap: on Apple Silicon it couldn’t run Windows VMs.

On Intel Macs it still holds up. It runs Windows 10 and Windows 11 without fuss. The setup path is well-trodden, and there are a million tutorials out there.

You allocate RAM and CPU cores, point it at a Windows ISO and click through the installation. Done.

Setup stops at a product key error? See Windows cannot read the ProductKey in VirtualBox.

Performance lands somewhat below Fusion. The UI still looks like it was designed in 2012. And the 200-page manual reads like it was written for DevOps engineers.

It’s free, though. On older Intel hardware it works, and that’s really all anyone needs.

Someone tells you VirtualBox can’t run Windows on an M-series Mac? They’re running on pre-2025 knowledge. It can now.

Even so, on Apple Silicon we’d still start with Fusion or UTM. Both have had Windows on Arm support for years and need less tinkering.

Wine, WineSkin, Whisky, CrossOver

Wine isn’t an emulator in the usual virtual-machine sense. The name literally stands for “Wine Is Not an Emulator”.

It translates Windows API calls, so individual .exe files run directly on macOS. No Windows install underneath. No ISO, no license, no VM.

Compatibility is the rough part. Some things just work: older utility apps, productivity tools, small games, internal company tools nobody maintains anymore.

Where Wine falls over:

• Recent .NET runtimes.
• Modern DirectX.
• Kernel-level drivers.

That’s most of what “real” Windows software leans on today.

On Apple Silicon it gets messier. Wine leans on Rosetta 2 to handle the Intel code first. So one translation layer sits on top of another. Results vary. A lot.

Four Wine-adjacent things worth knowing:

• WineSkin and WineBottler. Wine with a GUI wrapper on top. Handy for packaging one Windows app into a self-contained bundle you can forget about.
• Whisky. A Swift-based Wine frontend aimed at games, built on Apple’s Game Porting Toolkit. The developer announced in 2025 that he’s stopping updates. It still works, and we’d not build a workflow around it.
• PlayOnMac. A free, older front end that installs Windows programs through Wine with ready-made scripts. Fine for a classic app, less so on recent macOS.
• CrossOver 26. CodeWeavers’ commercial Wine distribution, at 74 USD per year. It comes with a tested compatibility database and real support, and handles a surprising number of games. The free trial lets you test first.

None of these replace a proper VM when you need Windows itself. They fit the narrow “one app, once a month” case. Even then, only sometimes.

Why not just use Parallels Desktop

It has to be addressed. Parallels Desktop is the 800-pound gorilla of Mac virtualization. Every free tool gets compared against it.

It runs faster, looks cleaner and handles graphics better than any free option. The setup is the smoothest in this space. If it were free, this page wouldn’t need to exist.

The problem: it costs money, and these days it costs money every year.

Microsoft names it on its Windows 11 on Apple silicon support page as a solution for running the Arm version in a VM.

The trial is the honest way to compare for yourself before spending a hundred dollars.

If any row in that table matters for your workflow, pay for it. You won’t regret it.

For everyone else, VMware Fusion Pro gets you most of what Parallels does. The rest is polish, and polish takes a team of paid engineers.

Some people keep both installed. Fusion for day-to-day work and Windows utilities, Parallels for a client demo that has to look buttery smooth. For a free alternative, though, we’d call Fusion the practical answer.

Gaming in a Windows emulator on a Mac: what works

A mixed bag, and better said upfront. People who ask usually mean Steam games, indie titles or older PC classics. The answer depends on the game and the tool.

If Windows gaming is the primary reason you’re here, a VM is the wrong tool. Honest truth.

Better options:

• CrossOver, paid at 74 USD and tuned for games.
• Apple’s Game Porting Toolkit, if you’re technical enough to wrestle with it.
• Another device.

For everything else, free virtualization holds up fine.

Intel or Apple Silicon: what your chip decides

This is where people keep tripping. The chip inside your Mac dictates everything: which Windows ISO to grab, and which tools will run it.

A quick check: Apple menu, About This Mac. An M-series name says Apple Silicon. A name that starts with Intel Core says Intel Mac.

A surprising number of guides online still get this wrong, or skip it entirely.

Windows 11 ARM

Microsoft includes an x86 and x64 translation layer, conceptually similar to Rosetta 2. Much Intel-compiled software runs on it without changes.

Gaming is the weak spot. Most games rely on anti-cheat kernel drivers that are ARM-incompatible. Others need graphics features that don’t translate cleanly.

Boot Camp

For the Intel era it was Apple’s official dual-boot solution, and it was fantastic. Windows booted natively on the actual hardware. Full performance, no virtualization overhead.

Boot Camp officially supports only Windows 10, never Windows 11. On Apple Silicon it doesn’t exist. Apple never ported it.

One more thing for Intel owners: the macOS 27 release needs Apple Silicon. Intel Macs stay on macOS 26 or earlier.

Someone suggests Boot Camp for an M-series Mac? They’re reading an article written before 2020. For the Intel-era options, see our Windows 10 on Mac installation guide.

Common Windows emulator errors on a Mac, and fixes

Pretty much every VM install trips over at least one of these. Save the list. You’ll need it eventually.

“Operating system not found” at first boot

You missed the “Press any key to boot from CD” prompt. It shows for about two seconds, so it happens a lot. Restart the VM and tap any key the instant the message appears.

If you landed at a Shell> prompt, the exit command from the UTM section drops you back to the boot menu.

“The processor on this computer is not compatible with this version of Windows”

A classic TPM check failure, usually on Fusion 13 with an older ISO. Shut down the VM and open Settings, then Advanced. Turn on Trusted Platform Module with a fresh key and retry.

Don’t just disable the check. Later Windows 11 cumulative updates will notice and refuse to install.

Windows installs, and there’s no network

VMware Tools, or the UTM SPICE guest agent, didn’t load yet. Until they do, the generic Windows network driver sometimes can’t see Apple’s virtual NIC on M-series Macs. Maddening the first time.

On UTM you can also switch the network mode to Shared Network in the VM config. That usually clears it up, in most setups at least.

The VM sits at 100% CPU and crawls

Too many CPU cores allocated. That’s almost always it. M-series chips split into performance and efficiency cores.

Give the VM 8 cores on an M3 Pro with just 6 performance cores, and macOS schedules part of its work onto efficiency cores. Everything crawls. Drop it back to 4. Counter-intuitive, and it runs faster.

Broadcom portal shows “Access denied” when downloading

Your account isn’t fully activated yet. Log out and check your inbox for the Broadcom verification email. It can take up to 15 minutes to arrive.

Click the link and log back in. A private browser window helps too, because the portal’s session handling is shaky.

Black screen on first boot in UTM

The display driver never initialized. Power off the VM, open its settings and go to Display. Pick the VirtIO-GPU GL option, the GLES3 one.

Some UTM builds default to a console-only display that shows a black rectangle. Unhelpful, to put it mildly.

Do you need a Windows license

Short answer: yes, for permanent activation. The virtualization tool is free. Windows isn’t.

Microsoft lets the VM run unactivated for a grace period. Then the Activate Windows watermark quietly appears in the bottom-right corner. Personalization settings lock: dark mode, wallpaper, accent colors.

The OS keeps running fine. It just starts looking broken, in a way that annoys you three times a day.

Activation inside a VM follows the same rules as on a real PC.

Using Windows on your Mac regularly? We’d just activate it properly. That kills the watermark, and you stop thinking about it.

Microsoft does publish generic Windows 10 and 11 installation keys. They let you pick the edition during install and don’t permanently activate anything.

For real activation you need a retail key. Our Windows 11 license catalog has those, the Windows 11 Pro key among them.

A key gets rejected inside the VM? Our guide to Windows 11 activation errors walks through the usual codes.

One detail people often miss: the Windows 11 ARM ISO itself is still free from Microsoft. Only activation costs money. So you can grab the ISO and evaluate everything for nothing.

Which free Windows emulator for Mac to pick

For Windows 11 on a Mac at no cost, pick VMware Fusion Pro. It downloads the right ISO and sets up TPM. Both kinds of Mac are covered. We’d call it the best Windows emulator for Mac at no cost.

Whichever tool you choose, the Windows part is identical. An ISO from Microsoft, then a license if you want it activated.

A VM is not quite an emulator

Most people who search for an emulator want a virtual machine.

For the other direction, a Mac emulator for Windows, see our guide to running macOS on a PC.

Before you start: a checklist

• Check the chip under Apple menu, About This Mac.
• Free up roughly 64 GB of disk.
• Make sure the Mac has 16 GB of RAM, or accept a slow VM.
• Update macOS to a current release.
• Create the Broadcom account ahead of time. The verification email can be slow.
• Decide on a license, or plan to run unactivated for now.

After Windows is installed

• Install the guest tools first. Nothing else works properly without them.
• Run Windows Update until it has nothing left to offer.
• Set up one shared folder for files that travel between the two systems.
• Take a snapshot before you experiment. Rolling back beats reinstalling.
• Enter your key under Settings, System, Activation when you’re ready to activate.
• Shut the VM down when you’re done. A suspended VM still holds on to disk space.
• Keep the downloaded ISO. The next VM can be built from the same file.
• Write down which tool and which settings you used. It saves time on the next Mac.

Quick answers

Common mistakes with a Windows emulator on a Mac

• The x64 ISO on Apple Silicon. It won’t install. The ARM64 build is the one that works.
• Every core handed to the VM. Both systems slow down. Half the physical cores is the ceiling.
• An 8 GB Mac. It boots, and macOS swaps the whole time.
• Guest tools skipped. No clipboard, no shared folders, a wrong resolution.
• Competitive online games. Kernel-level anti-cheat doesn’t run in these VMs.
• A generic installation key treated as a license. It picks the edition and activates nothing.
• Boot Camp on an M-series Mac. It was never ported.

Windows on an Apple silicon Mac

Macs with M-series chips use Arm processors, so they run the Arm version of Windows 11. Microsoft names one supported VM route and one cloud route.

Microsoft also says Windows 11 Pro product keys are platform agnostic, x64 or Arm. So we’d expect a retail Windows 11 Pro key to activate the Arm version in Parallels as well.

The page names only Parallels. VMware Fusion and UTM can also run Arm Windows on Apple silicon. They’re not on Microsoft’s list, though, so we’d pick Parallels for work machines.

A Windows virtual machine on a MacBook Air or an M-series Mac mini

Every free Windows emulator for Mac above runs on a MacBook Air. Same Arm build of Windows 11, same steps. Two things differ.

An M4 or M5 Mac? Nothing special. The ARM64 ISO, Fusion or UTM, done. Microsoft’s own Apple silicon page still names M1, M2 and M3 chips only. Newer chips? Same Arm build, same tools.

Memory can’t be upgraded later on any Apple Silicon Mac. Planning to live in Windows half the day? Then we’d buy the Air with more of it.

Windows 365: no VM on the Mac at all

Microsoft’s second route streams a Windows 11 Cloud PC to the Mac. Windows 365 is sold per user, per month, mainly to organisations, with several performance tiers.

Microsoft notes that Windows 365 supports nested virtualization. Workloads that fail in a Parallels VM on Apple silicon, such as Windows Subsystem for Linux, can run there. We’d weigh that against a monthly cost and the need for a steady internet connection.

How much Mac a Windows VM needs

Windows 11 itself asks for 4 GB of memory and 64 GB of storage, which is where our table starts. We’d run a small Windows VM on a Mac with 8 GB in total, but 16 GB or more makes both systems comfortable at once.

Licensing a Windows virtual machine on Mac, in one place

Our Windows 11 Pro key works for a Windows VM on a Mac, x64 or Arm, and arrives instant to email. All versions are under Windows keys. We’d suggest one key for Office in both systems: Office Home and Business 2024 installs on a PC or a Mac.

Moving your old PC’s Windows into a Mac VM

People switching from a PC to a Mac often want to keep their old Windows license. Whether that works depends on the license channel, not on the Mac.

We explain the channels in retail vs OEM vs volume licenses and the moving rules in transferring a Windows license to a new PC. The same rules apply when the new PC is a virtual one.

Related guides

• Parallels Desktop for Mac
• How to zip and unzip files on a Mac
• VirtualBox and product keys: Windows cannot read the product key in VirtualBox.
• The other process with a confusing name: WindowServer on Mac.
• Connecting from a Mac to a Windows server: accessing Windows Server from a Mac.
• How to Install Windows 10 on Mac with Boot Camp

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