Create a Dual-Boot Mac OS X System Disk
Otherwise, you will need to first delete Windows, install macOS after formatting the disk, and then install Windows 10 at the end. The reason Windows 10 comes last is that certain errors might occur if you try installing Windows first. To start off, you will need a disk partition utility to help you allocate the required space. Once you have the software, follow the steps shown below.
Step 2 : If the EFI partition is less than MB, you will need to expand it by taking space from the partition before or after it. You can right-click on the partition to resize it. Step 3 : Now right-click on the new partition and select Split to create a new partition for the macOS installation. The size can be specified on this page. Click OK to apply the changes. Step 4 : The next step is to format this partition. To do this, right-click on the macOS partition and select Format. In Windows, you can do this by hitting the F2 during the startup process.
Select the partition inside Disk Utility and hit Erase. After that, click the Erase button to start the partition process. The purpose of this step is so that your macOS can boot from the partition instead of from the USB installer. Follow the prompt to start the macOS installation process. Step 8 : There's still one more step required to make sure the dual-booting works, and that is to modify one single file so that both partitions are visible as boot sources. This is important because, otherwise, you will have to boot to macOS from the installer each time, which is a complex and unnecessary task.
The steps in the image below show you how it's done:. Step 9 : The final step, which is optional, will make your computer boot into Clover instead of Windows. This allows you to choose which OS to boot into, and it's a very convenient thing to set up.
You can also do this when your drive name fails to show up despite following Step 6. See the steps shown in the image below. The process is now complete. Select the OS you want to work on and resume the boot process. You will need to restart to access the other OS, which is a minor inconvenience, but that's a trade-off you're going to have to be willing to make if you want a dual boot computer with both Windows 10 and macOS.
This can be done when your original Windows drive is not formatted for GPT. Click the Apple menu in the upper left and then hit App Store.
Go to Updates and install any software updates for macOS. Restart your computer if prompted. After restarting, check for software updates again until no new ones are available.
Because Boot Camp will be moving and re-allocating space on your hard drive, you should back up any important data before you continue, in case anything becomes corrupted during the process. Install Windows Time for the main event. Quit all open applications and then open up a Finder window.
How to Install and Dual Boot Linux and Mac OS
Open Boot Camp Assistant , then click Continue. The next step is to partition your hard drive. IDG Move the slider to give your Windows partition more or less space. Remember that any space you assign will be taken from the available space for your Mac, and that macOS will run more efficiently if you leave at least 30 to 40GB of space free on its partition.
We recommend a 5GB margin at minimum. Windows will now start to install.
Using Boot Camp to Run Windows on a Mac
The Boot Camp Installer should then appear in a new window. Accept the terms of the license agreement and it will start installing any necessary drivers. If you installed Windows 10, you should also use Apple Software Update to prevent known driver issues. IDG In the top box, select all of the available updates and then click Install items. You can also choose to install New Software , like iCloud, if you want.
Windows will ask if you want to allow Apple Software Update to make changes, click Yes. Click OK and your Mac should now reboot into a fully functioning version of Windows 10! Installing Windows on pre Macs While Macs from pre can still run Windows, the installation process is slightly more complex.
Click Applications and then go into Utilities. Click Continue to begin setup. This software will allow you to install the most current drivers for Windows. Now click Continue.
IDG If asked for your administrative credentials, fill them in. Then press Enter to start downloading the software. IDG After the download finishes, the assistant will prompt you to create a Windows partition on your hard drive. This action segments your drive to devote free space only for Windows, without interfering with or erasing your existing macOS installation. Here you can decide how much hard-drive space to allocate to your Windows partition. IDG Adjust the slider to give your Windows partition more or less free space.
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