Boot Camp Assistant User Guide
You need an external USB drive to install Windows on older Mac computers. To find out whether you have a Mac that requires an external USB drive, see the “Learn more” section in the Apple Support article Install Windows 10 on your Mac with Boot Camp Assistant. If your Mac is a newer model that doesn’t require a USB drive, follow the instructions in Install Windows on your newer Mac using Boot Camp instead.
Bootcamp has long been the default way to run Windows on a Mac. We’ve covered it before, and you can use the MacOS tool to partition your Mac’s hard drive to install Windows in its own space. If you have a Mac without an optical drive, like a Macbook Air, make sure you either have an external drive with a Windows 7 disc; or, if you want to update from an ISO image via a USB flash drive, make sure you update form Boot Camp 4.0 and OS X Lion. Step 3: Have a Windows 7 Install disc ready. Jan 25, 2008 You've got 4 partitions (check with diskutil list): 1/EFI, 2/Macintosh HD, 3/Recovery HD, 4/BOOTCAMP Check that Windows actually boot in BIOS mode with msinfo32. BIOS MODE should be placed to Legacy. You must have a Mac that can boot Windows in UEFI mode (not too old).
What you need
- The keyboard and mouse or trackpad that came with your Mac. (If they aren’t available, use a USB keyboard and mouse.)
- A blank 16 GB or larger external USB 2 flash drive, formatted as MS-DOS (FAT).To format an external USB drive as MS-DOS (FAT), use Disk Utility, located in /Applications/Utilities. In Disk Utility, choose View > All Devices, select the USB drive in the sidebar, then click Erase in the toolbar. In the dialog, enter a name for the drive, choose MS-DOS (FAT) from the Format pop-up menu, choose Master Boot Record from the Scheme pop-up menu, then click Erase.
- A full-installation, 64-bit version of Windows 10 on a disk image (ISO file) or other installation media.You can download a Windows 10 Disc Image (ISO File) from Microsoft.
- Sufficient free storage space on your startup drive. For information about the amount of free space needed, see the Apple Support Article Install Windows 10 on your Mac with Boot Camp Assistant.
Before you begin
![Mac Bios Usb Enable For Bootcamp Mac Bios Usb Enable For Bootcamp](https://i.stack.imgur.com/y0aOJ.png)
Before you install Windows, make sure you back up important files.
You can use Time Machine or any other method to back up your files. For information about backing up files, see Back up your files with Time Machine and Ways to back up or protect your files.
Perform the installation
Do the following steps in order.
Step 1: Check for software updates
Before you install Windows, install all macOS updates.
- On your Mac, log in as an administrator, quit all open apps, then log out any other users.
- Choose Apple menu > System Preferences, click Software Update, then install all available updates.If your Mac restarts after installing an update, open Software Update again to install any additional updates.
Step 2: Prepare your Mac for Windows
Boot Camp Assistant prepares your Mac by creating a new partition for Windows named BOOTCAMP and downloading the Boot Camp support software.
Important: If you’re using a portable Mac, connect it to a power source before continuing.
- Connect an external USB drive or insert a flash drive into the USB port on your Mac; keep it connected or inserted while you install Windows and the Windows support software.
- On your Mac, open Boot Camp Assistant , located in /Applications/Utilities.
- At the introduction screen, click Continue.The system is checked for total available disk space. Older Time Machine snapshots and cached iCloud files are removed to make space for Boot Camp. This process may take a long time to complete (you can click the Stop button to skip this process).
- At the Select Tasks step, select all the tasks, then click Continue.
- At the Create Bootable USB Drive for Windows Installation step, choose the Windows ISO image and the USB drive, then click Continue.The Windows files are copied to the USB drive. This process may take a long time to complete (you can click the Stop button to interrupt this process).
- At the Create a Partition for Windows step, specify a partition size by dragging the divider between the macOS and Windows partitions. If you have multiple internal hard drives, you can select a different hard drive from the one running macOS and create a single partition on that drive to use solely for Windows.
- Click Install.
When this step is complete, the Windows installer starts.
Step 3: Install Windows
- In the Windows installer, follow the onscreen instructions.
- When you’re asked where to install Windows, select the BOOTCAMP partition (you may need to scroll through the list of partitions to see it), then click Next.WARNING: Do not create or delete a partition, or select any other partition. Doing so may delete the entire contents of your macOS partition.
- Continue following the onscreen instructions to finish installing Windows.After you install the Windows software, your Mac automatically restarts using Windows.
- Follow the onscreen instructions to set up Windows.
Step 4: Install Boot Camp on Windows
After installing Windows, Boot Camp drivers that support your Mac hardware start installing.
Note: Airy pro 3 7 205 – video downloader youtube downloader. If the support software doesn’t install automatically, you need to install it manually. For instructions, see the Apple Support article If the Boot Camp installer doesn't open after using Boot Camp Assistant.
Mac Bios Usb Enable For Boot Camp Windows 7
- In the Boot Camp installer in Windows, follow the onscreen instructions.Important: Do not click the Cancel button in any of the installer dialogs.If a message appears that says the software you’re installing has not passed Windows Logo testing, click Continue Anyway.You don’t need to respond to installer dialogs that appear only briefly during installation, but if a dialog asks you to install device software, click Install.If nothing appears to be happening, there may be a hidden window that you must respond to. Look behind open windows.
- When the installation is complete, click Finish, then click Yes to restart your Mac.
- After your Mac restarts, follow the instructions for any other installers that appear.
See alsoGet started with Boot Camp on MacTroubleshoot Boot Camp Assistant problems on MacApple Support website: Boot Camp Support
To troubleshoot an issue with Windows 10 (especially boot-related issues), it can be handy to boot to Windows 10 that is not installed on a Boot Camp partition. It is relatively straightforward to create a bootable USB Flash drive to boot to the Windows 10 installer, and then open up a DOS prompt for troubleshooting.
What is needed
- USB Flash drive (8 GB or larger recommended)
- Windows 10 Installer ISO for Windows 10
Preparation
All the preparation is done in macOS on the Mac that is having an issue booting Windows. It is important to use this Mac since it will be used to identify the correct Windows drivers.
Macbook Allow Boot From Usb
USB Flash Drive
The USB Flash drive must be formatted as exFAT.
- Insert an 8GB or larger flash drive into a USB port on the Mac
- In Disk Utility, format the Flash drive as exFAT. Quit Disk Utility after this operation completes.
Boot Camp Driver
Open Boot Camp Assistant in the Utilities folder, and download the current Windows Support Software from the Action menu. Save the Windows Support Software to your desktop or other location, but do not save directly to the USB Flash Drive.
Windows Install Media
Download the current install media from the Microsoft website. Windows is not going to be installed, but the install media will give access to the command line tools in Windows. Select the version of Windows that is closes to the version of Windows installed on the Mac (Windows 8, Windows 10). It does not matter what edition of Windows is used since Windows is not going to be installed.
Create Recovery USB Flash Drive
To create the USB Flash drive, follow these steps:
- Mount the Windows ISO that was downloaded from Microsoft. To mount the ISO, double click on the ISO in the Finder.
- Drag all the files and folders from the mounted ISO to the USB Flash Drive.
- Drag the contents of the Windows Support Software to the USB Flash Drive.
- If there is not an AutoUnattend.xml at the top level of the drive (as shown below), download AutoUnattend.xml, unzip it, and add it to the drive. AutoUnattend.xml provides the location of the $WinPEDriver$ folder to load the drivers during boot.
- The 2018 MacBook Air (and potentially Macs after that) have cannot load the IntelMEI driver and give a “Windows Setup could not install one or more boot-critical drivers. To install Windows, make sure that the drivers are valid, and restart the installation”. On the USB Flash drive, open the $WinPEDriver$ and remove the IntelMEI folder.
Once the Flash drive has been created, it should look like this:
The $WinPEDriver$ folder is important because the $WinPEDriver$ folder contains the drivers for Windows to boot successfully from the USB Flash drive and the hardware on that Mac.
Boot from the USB Flash drive
To inject the drivers, the Mac must be booted from the USB Flash drive.
- Insert the USB Flash drive into an available USB port on the Mac
- Reboot while holding the option key.
- Select EFI volume in the startup selector.
If Windows does not boot from the USB Flash drive after showing the Windows logo, you may have to run the following command to tell the firmware to boot the windows installer from the USB flash drive. This has been observed on the late-2014 Mac Mini but may affect other models as well. To set the variable:
- Disable SIP by booting to the recovery partition.
- Boot back to macOS and open Terminal. Run the follow command and enter the admin password when prompted:
sudo nvram InstallWindowsUEFI=1
Insert the USB flash drive if it is not inserted, reboot, and select the EFI volume from the startup selector.
Note the InstallWindowsUEFI variable is cleared at each reboot, so you will to set it again if you do not select the USB Flash Drive.
Command Prompt and Mapped Drives
When Windows 10 starts up, it will prompt for installation of Windows 10. To open up a DOS window, press Fn-Shift-F10 (or just shift-F10) or click Repair Computer->Troubleshoot->Command Prompt (if available).
Once in the command prompt, there are usually 3 drive letters available: X, C, and D.
- X: This is Windows that you are booted into in memory. The files from the boot.wim on the flash drive are copied to memory and then booted to.
- C: Boot Camp partition
- D: The USB Flash drive
Running Utilities
Within the Windows command prompt, you can run utilities on the Boot Camp partition.