Though many people will disagree, installing an operating system like macOS isn't such a daunting task. If you're willing to follow the prescribed steps, you can do it even without having the expertise of a systems administrator. What makes it confusing is that there are usually several ways to clean install, re-install or upgrade macOS. Each type of installation requires a slightly different approach. In this article, we'll outline one of the simplest ways to clean install macOS Mojave from a USB flash drive. It's split up into four parts. Read each one carefully and make sure you understand what to do.
Part 1: Download macOS Mojave or High Serria DMG File
How to create a bootable macOS High Sierra installer drive Put the macOS High Sierra installer on an external USB thumb drive or hard drive and use it to install the operating system on a Mac.
If you have multple Macs to upgrade, it's a lot more efficient to plug in the USB installer drive and run the installer than to log into the App Store, download the 8.09GB OS installer, and then. How to Install macOS on a PC Using the Installation USB. After you have successfully created your macOS installation USB, you will need to remove it from your Mac and plug it into the PC that you want to turn into a Hackintosh. This is a fairly long process that involves formatting the drive in your PC and performing a clean installation of macOS. The Mac will now boot to the Sierra installer and, because it is running off of the USB drive, it can access and erase your Mac's internal drive. Once erased, the installer will perform a clean install of Sierra on your drive (just make sure to back up before performing a clean install!). In the past I have successfully installed Mac OS 9.2 via USB on this machine, however 10.3 always begins the boot process, only to hang on the 'Still waiting for root' screen (White background, grey prohibitive logo), and 10.4 always gets as far as the Apple boot logo, only to hang there and stop accessing the USB drive all together.
DMG is the format that Apple now uses for packaging software as a disk image. It's somewhat similar in function to ISO for Windows environments, but there are many differences as well. The one thing they can both do is to be burned as bootable media so an OS can be installed from a portable storage medium like a pen drive.
To download a macOS DMG file, you'll need to go to the Mac App Store and look at your Purchased section. If you already have it installed on that machine, it will appear there. You can also search for a particular version in the store. Make sure that once you download the file, it doesn't automatically start the installation. If it does, quit the process. You need the installation files, which will be deleted if the OS is installed.
Part 2: Burn macOS DMG File to USB Drive
This step requires some care because you can't create bootable media by just copying a DMG to a USB stick. You will need a disk authoring software that can write the DMG file with all relevant boot information to make it bootable. If you cannot boot from the drive you create in this step, you can't proceed with the installation. You can use the third-party apps to burn DMG to USB and follow the steps shown below:
Step 1: Get the DMG file from the Mac App Store.
Step 2: Install and launch DMG to USB burning utility such as UUByte DMG Editor, and insert a USB drive with at least 12GB of space (for macOS 10.14 Mojave; some require up to 16GB.) Since the drive will be formatted for the macOS installation, make sure you back up any important information that's already stored there.
Note: Your USB may need to be formatted with Disk Utility before it can be used to create bootable media. To do this, go to your USB drive within Disk Utility and click on the button or tab that says Erase. Now fill out Name, Format and Scheme fields, click Erase and Done. The format should be set to Mac OS Extended (journaled) and the scheme, if required, should be GUID Partition Map.
Step 3: Import the macOS installer and click the Burn function after selecting the appropriate USB drive.
Download Mac Os High Sierra
Step 4: You may need to specify certain parameters such as burn speed, but in most applications, you can leave the default values as they are.
What you now have is a bootable USB drive containing the macOS installation files in the DMG format. The next step is to boot your Mac from this installer, and there's a special way to do that.
Part 3: Boot Mac from USB
You can now insert your USB drive into the Mac you want to install macOS on. Restart the Mac, but when you hear the startup chime, hold down the Option (alt) key on your Mac until you see the Startup Manager. Several drives will be displayed, but only the ones that have bootable media installed. Pick your USB drive using a double-click with the mouse pointer or by using the arrow keys and Return (enter) on a keyboard. Now the Mac is booting from external USB.
The process of installation has now begun. Let's go through the final steps to install macOS from USB.
How To Install Mac Os With Usb Windows 10
Part 4: Clean Install macos Mojave or High Serria from USB
The last part of the installation process is simple. Just choose a language when prompted, and follow the instructions shown on screen as macOS Mojave is installed. You will need to first choose the right OS version and select Reinstall a New Copy of macOS. Click on Continue, and then on Continue again when the installer opens, and click Install to complete the process.
This is one of the easiest ways to install macOS from a USB. You don't require any experience and you don't need any additional tools. The key things to be careful about are the creation of the bootable USB, formatting it properly and booting your computer from the media instead of from the regular installation files. If you can replicate the steps shown in this article, you'll be installing macOS like a pro in no time!
Macbooks or iMacs hardly require reinstallation of their Mac OS, but when they do then it's a fairly difficult process especially if your secondary computer is Windows. Reinstalling Mac OS is a time-consuming process and requires a lot of patience that's why recommend doing this process in your free time or weekends.
To get started with you require a USB drive with at least 8GB storage (16GB recommended). Then you need a working Mac OS ISO or DMG Installation Image. You can download it from the Apps Store or you can find Mac OS Image at ISORIVER.
There are 2 Methods to Create a Bootable USB drive of Mac OS on your Windows PC.
Method 1: Using TransMac
- Download TransMac's latest version for Windows from this link.
- Connect your USB drive
- Right Click on your USB drive option in TransMac and select Format Disk for Mac
- After that, right-click the USB Drive and select Restore with Disk Image
- Point to your Mac OS .dmg or .iso file by clicking the add button.
- After that TransMac will create bootable Mac OS USB within few minutes.
- Then you can insert it into your Mac, hold down the option key while turn on and boot your system with this USB.
Method 2: Using PowerISO
Another disk image utility that you can use is PowerISO. It can be used for burning both ISO files and DMG files to USB to create a bootable drive. Follow the steps below to Create a Bootable Mac OS USB on Windows PC.
Step 1: Firstly Download PowerISO and install it in your Windows PC. Launch the app and insert a USB drive into your computer.
Step 2: Import the DMG / ISO file directly by clicking on ‘Burn' in the toolbar.
Step 3: In the Burn window, select the DMG / ISO file from the Source File section.
Step 4: You can modify the settings to adjust burn speed. The default will be set to the maximum, so you can reduce that.
Step 5: You can choose to finalize the disk and verify it. Any errors in the bootable USB will show up at that point.
Step 6: Now click on 'Burn' and wait for the progress bar to reach 100%.
After the successful creation of Bootable Mac OS USB, boot your Macbook from this USB drive by clicking the option button during bootup and select this USB drive.
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That's it for the tutorial If you face any issues or had any query then please let us know in the comment section below. You can also send us an email via the contact us page for personalized support.
