Restart your Mac in macOS or Windows

After installing Microsoft Windows on your Mac, you can choose whether your Mac starts up in macOS or Windows.

How to start up in macOS from Windows

1. From the notification area on the right side of the Windows taskbar, click to show hidden icons.
2. Click the Boot Camp icon .
3. From the menu shown, choose Restart in macOS.
   If you haven’t installed the latest Boot Camp updates, you might get the message ”Could not locate the OS X boot volume.»
   

Or use Startup Manager as your Mac starts up:

1. Restart your Mac from the Start menu in Windows.
2. Press and hold the Option (or Alt) ⌥ key as your Mac begins to restart.
3. Select your Mac startup volume (Macintosh HD) in the Startup Manager window, then press Return or click the up arrow:
   

How to start up in Windows from macOS

• Use Startup Manager to choose your Windows (Boot Camp) volume during startup.
• Or select your Boot Camp volume in Startup Disk preferences, then restart.

Learn more

• If you’re having difficulty using VoiceOver or another screen reader to complete these steps, please contact Apple Support.
• Learn how to install Windows 10 on your Mac.

Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Contact the vendor for additional information.

Install Windows 10 on your Mac with Boot Camp Assistant

With Boot Camp, you can install Microsoft Windows 10 on your Mac, then switch between macOS and Windows when restarting your Mac.

What you need to install Windows 10 on Mac

• MacBook introduced in 2015 or later
• MacBook Air introduced in 2012 or later
• MacBook Pro introduced in 2012 or later
• Mac mini introduced in 2012 or later

• iMac introduced in 2012 or later 1
• iMac Pro (all models)
• Mac Pro introduced in 2013 or later

The latest macOS updates, which can include updates to Boot Camp Assistant. You will use Boot Camp Assistant to install Windows 10.

64GB or more free storage space on your Mac startup disk:

• Your Mac can have as little as 64GB of free storage space, but at least 128GB of free storage space provides the best experience. Automatic Windows updates require that much space or more.
• If you have an iMac Pro or Mac Pro with 128GB of memory (RAM) or more, your startup disk needs at least as much free storage space as your Mac has memory. 2

An external USB flash drive with a storage capacity of 16GB or more, unless you’re using a Mac that doesn’t need a flash drive to install Windows.

A 64-bit version of Windows 10 Home or Windows 10 Pro on a disk image (ISO) or other installation media. If installing Windows on your Mac for the first time, this must be a full version of Windows, not an upgrade.

• If your copy of Windows came on a USB flash drive, or you have a Windows product key and no installation disc, download a Windows 10 disk image from Microsoft.
• If your copy of Windows came on a DVD, you might need to create a disk image of that DVD.

How to install Windows 10 on Mac

To install Windows, use Boot Camp Assistant, which is included with your Mac.

1. Check your Secure Boot setting

Learn how to check your Secure Boot setting. The default Secure Boot setting is Full Security. If you changed it to No Security, change it back to Full Security before installing Windows. After installing Windows, you can use any Secure Boot setting without affecting your ability to start up from Windows.

2. Use Boot Camp Assistant to create a Windows partition

Open Boot Camp Assistant, which is in the Utilities folder of your Applications folder. Follow the onscreen instructions.

• If you’re asked to insert a USB drive, plug your USB flash drive into your Mac. Boot Camp Assistant will use it to create a bootable USB drive for Windows installation.
• When Boot Camp Assistant asks you to set the size of the Windows partition, remember the minimum storage-space requirements in the previous section. Set a partition size that meets your needs, because you can’t change its size later.

3. Format the Windows (BOOTCAMP) partition

When Boot Camp Assistant finishes, your Mac restarts to the Windows installer. If the installer asks where to install Windows, select the BOOTCAMP partition and click Format. In most cases, the installer selects and formats the BOOTCAMP partition automatically.

4. Install Windows

Unplug any external devices that aren’t necessary during installation. Then click Next and follow the onscreen instructions to begin installing Windows.

5. Use the Boot Camp installer in Windows

After Windows installation completes, your Mac starts up in Windows and opens a ”Welcome to the Boot Camp installer” window. Follow the onscreen instructions to install Boot Camp and Windows support software (drivers). You will be asked to restart when done.

• If the Boot Camp installer never opens, open the Boot Camp installer manually and use it to complete Boot Camp installation.
• If you have an external display connected to a Thunderbolt 3 port on your Mac, the display will be blank (black, gray, or blue) for up to 2 minutes during installation.

How to switch between Windows and macOS

Restart, then press and hold the Option (or Alt) ⌥ key during startup to switch between Windows and macOS.

Learn more

If you have one of these Intel-based Mac models using OS X El Capitan or later, you don’t need a USB flash drive to install Windows:

• MacBook introduced in 2015 or later
• MacBook Air introduced in 2017 or later 3
• MacBook Pro introduced in 2015 or later 3

• iMac introduced in 2015 or later
• iMac Pro (all models)
• Mac Pro introduced in late 2013 or later

For more information about using Windows on your Mac, open Boot Camp Assistant and click the Open Boot Camp Help button.

1. If you’re using an iMac (Retina 5K, 27-inch, Late 2014) or iMac (27-inch, Late 2013) or iMac (27-inch, Late 2012) with a 3TB hard drive and macOS Mojave or later, learn about an alert you might see during installation.

2. For example, if your Mac has 128GB of memory, its startup disk must have at least 128GB of storage space available for Windows. To see how much memory your Mac has, choose Apple menu  > About This Mac. To see how much storage space is available, click the Storage tab in the same window.

3. These Mac models were offered with 128GB hard drives as an option. Apple recommends 256GB or larger hard drives so that you can create a Boot Camp partition of at least 128GB.

Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Contact the vendor for additional information.

The 5 Best Ways to Run Windows on Your Mac

Find out which option best fits you

While macOS is made to run using Mac hardware, it is not the only operating system that can run on a Mac computer.

Plenty of other operating systems, including Window and Linux, will work on a Mac device. That makes the Mac among the most versatile computers you can buy. Here’s what we’d use to install Windows on a Mac.

Boot Camp

Supports Windows 7, 8.1, and 10

Windows runs natively on Mac hardware for best performance

Requires a full Windows license for the initial install.

Cannot run Windows and Mac OS concurrently.

Perhaps the best-known option for running Windows on a Mac is Boot Camp. Included free with your Mac, Boot Camp allows you to install Windows and then choose between Mac and Windows on startup.

Because Boot Camp runs Windows directly on your Mac’s hardware (there is no virtualization or emulation to be performed) Windows can run at the best possible speed your Mac is able to deliver.

Installing Windows on your Mac is no more difficult than installing Windows on a PC. Apple even provides the Boot Camp Assistant to partition the startup drive to make room for Windows as well as to install all the drivers Windows needs for special Apple hardware.

Virtualization

Run both macOS and a guest OS side-by-side.

Not limited to Windows; a large number of guest operating systems are supported.

Performance tuning and customization needed to achieve the best performance.

May impact the performance of your Mac.

Virtualization allows several operating systems to run on computer hardware at the same time. Virtualization abstracts the hardware layer, making it look like each operating system has its own processor, RAM, graphics, and storage.

Virtualization on the Mac makes use of a software layer called a hypervisor to emulate all of the underlying hardware. As a result, the guest operating system running on the virtual machine does not run as fast as in Boot Camp. But unlike Boot Camp, both the Mac operating system and the guest operating system run at the same time.

There are three primary virtualization apps for Mac:

• Parallels: The first to bring virtualization to the Mac. Parallels supports a wide range of guest OS, including Windows, Linux, and Mac.
• VMWare Fusion: Fusion is the Mac virtualization app offered by VMWare — a leader in virtualization tech. Fusion supports the installation of many different operating systems, including Windows, Linux, and macOS.
• VirtualBox: Oracle supports an open source virtualization app known as VirtualBox. This free virtualization app runs on multiple computer systems, including Mac. Like the other virtualization apps, VirtualBox can be used to run many different operating systems, including Windows, Linux, and macOS.

Installing the virtualization apps is similar to any other Mac app. Guest OS may be more involved with some customization required to obtain the best performance. All three apps have lively forums and support services to help with tuning the performance.

Connect to a Windows computer from a Mac

You can connect to Windows computers and servers on your network from your Mac.

For instructions on setting up the Windows computer, see Set up Windows to share files with Mac users.

Connect to a Windows computer by browsing

In the Finder on your Mac, choose Go > Connect to Server, then click Browse.

Find the computer’s name in the Shared section of the Finder sidebar, then click it to connect. You may need to click All to see all the shared computers.

When you locate the shared computer or server, select it, then click Connect As.

In some cases you need the network area or workgroup for the shared computer. If you don’t have this information, contact the computer’s owner or your network administrator.

If necessary, enter your username and password, then select volumes or shared folders on the server.

Passwords for Windows computers and servers are often 14 characters or fewer. Check with the owner or administrator to be sure.

To make it easier to connect to the computer in the future, select “Remember this password in my keychain” to add your username and password for the computer to your keychain.

Connect to a Windows computer by entering its address

In the Finder on your Mac, choose Go > Connect to Server.

Type the network address for the computer in the Server Address field using one of these formats:

For information about the correct format for network addresses, see Network address formats for shared computers and servers.

Follow the onscreen instructions to type the workgroup name and a username and password, then choose the shared folder you want to access.

If you don’t know the workgroup name and the network name (called the computer name) for the Windows computer, contact the person who owns the computer or your network administrator.

If necessary, enter your username and password and select volumes or shared folders on the server.

Passwords for Windows computers and servers are often 14 characters or fewer. Check with the owner or administrator to be sure you have the correct password.

To make it easier to connect to the computer in the future, select “Remember this password in my keychain” to add your username and password for the computer to your keychain.

Connect using an Ethernet cable

Connect your Mac to the Windows computer using a standard Ethernet cable. If your Mac doesn’t have an Ethernet port, try using a USB-to-Ethernet adapter.

Connecting the two computers creates a small local network that consists of just the two computers.

On the Windows computer, turn on file sharing. Refer to the instructions that came with the Windows computer if you’re not sure how to do this.

Make sure the Internet Connection Firewall is turned off on the Windows computer, or if it’s on, make sure TCP port 445 is open to allow sharing connections.

For more information, refer to the user manual and onscreen help for the Windows computer.

On the Mac, choose Go > Connect to Server, then click Browse, or type the network address for the computer in the Server Address field.

Reconnect to recent computers or servers

Here are some ways to make it easy to reconnect to shared computers and servers you frequently use:

On your Mac, choose Apple menu

> Recent Items, then choose from the list of recent servers.

In the Finder on your Mac, choose Go > Connect to Server, click the pop-up menu to the far right of the Server Address field, then choose a recent server.

Add shared computers, network areas and workgroups to the Finder sidebar. Select the item, then choose File > Add To Sidebar or press Command-T.

Add a shared computer or server to your list of favourites. In the Finder on your Mac, choose Go > Connect to Server, enter the network address, then click the Add button .

If you can’t locate a shared computer or server or connect to it, it may not be available, or you may not have permission to connect to it. Contact the person who owns the computer or the network administrator for help.