Windows is more cranky and less stable than macOS from Apple. The openness of the OS, the lack of an integrated backup system and a large number of malware often lead to the need to reinstall Windows.
If you have a second Windows computer at hand, creating a bootable USB flash drive will not be difficult.
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Now we’ll show you how to get out of the situation when there is only a working Mac.
To the point: how to create a bootable macOS flash drive on Windows
A few years ago, you could create a bootable USB flash drive using the standard utility Boot camp, which is designed to quickly install Windows on a Mac.
The application prepared a bootable USB flash drive, recorded the Windows installer on it and poured drivers for the correct operation of all Mac modules. It was possible to use such a USB flash drive not only on Apple computers, with its help it was possible to install Windows on any suitable computer.
Recently, macOS developers have redesigned the utility and instead of creating a bootable USB flash drive, it immediately starts installing the system on a separate Mac partition.
Fortunately, there is another fairly simple way to specify a USB flash drive for installing Windows.
How to create a bootable Windows flash drive
1. First you need an image with an operating system. You can download it directly from the official Microsoft website.
A Windows 10 image takes up a little more than 5 GB of disk space; it usually takes 15 to 30 minutes to download.
2. Next, you need a flash drive of 8 GB or more, which will be formatted in the format Fat32. And here the Cupertinos again try to put us sticks in the wheels.
The disk utility, which previously could easily bring the drive to the form we need, now does not offer a choice of format Fat32.
So instead of using a couple of convenient standard applications macOS will have to work in the almighty Terminal.
3. In the Terminal, execute the following command:
We see a list of internal and external drives on the Mac. We find the desired volume and remember its number. Next, enter the command:
sudo diskutil eraseDisk FAT32 WININSTALL MBRFormat /dev/disk3
Fat32 – the file system we need;
WININSTALL – flash drive label after formatting (you can specify any name);
disk3 – number of the connected drive, which we will format.
Enter the administrator password, wait a few seconds and get a ready-made blank flash drive.
4. It remains only to copy the contents of the image from Windows 10 to a USB flash drive.
To do this, mount the image and enter the following command in the Terminal:
cp -R расположение_образа/ расположение_флешки
In order not to manually register long paths, you just need to enter the beginning of the “cp -R“ command, and then drag the image onto the Terminal window from the Finder. The path to it will be registered automatically.
Now we write “/” (without quotation marks with a space) and drag and drop the USB flash drive from the Finder into the Terminal.
5. Copying will take some time. No status will be displayed. The end of the process can be judged by the luminous diode on the USB flash drive (it will blink during copying).
You can just wait about 20 minutes.
Now the flash drive can be used to boot on computers and laptops with UEFI support. Unfortunately, this method is not suitable for older Windows PCs.