Guide to Creating a macOS bootable USB on a Windows PC. In this tutorial, we’ll take you through the steps you need to take to create a macOS Sierra bootable USB installation on a PC featuring Windows 10, 8 or Windows 7. This can then be used to upgrade or reinstall Apple’s MacOS. In this video I will show you how to create a bootable USB Flash Drive for macOS Sierra, and will also show you why you need it and how to use it in the futu. Apr 27, 2021 What you need to create a bootable installer A USB flash drive or other secondary volume formatted as Mac OS Extended, with at least 14GB of available storage A downloaded installer for macOS Big Sur, Catalina, Mojave, High Sierra, or El Capitan.
What’s up guys, in this tutorial I’m going to show you How to Create Bootable USB Installer for macOS High Sierra Windows 10 Operating System. There are few applications that you need to download in-order to successfully create a bootable USB Flash Drive to install macOS High Sierra Windows 10 PC.
Now copy this InstallESD.DMG as you need it in TransMac to Create macOS High Sierra Bootable USB Installer on Windows 10. Ok, so lets continue with TransMac Restore Disk Image to Drive. On this screen, select the InstallESD.DMG file and click OK. Download: macOS Big Sur, macOS Catalina, macOS Mojave or macOS High Sierra These will be downloaded to your Applications folder as an app named Install macOS version name. If the installer opens after downloading, quit it without continuing installation.
Firstly, you need to download TransMac application as we will use this to write files onto flash drive. Once you have downloaded and installed TransMac, run the application.
TransMac is a Paid Application. But the trial period will last for 15 days, this is more than enough for us to Create Bootable USB Installer for macOS High Sierra Windows 10.
Before you click Run, just make sure you have plugged-in your 16 GB USB Flash Drive.
Now, Click Run and proceed with the trial of 15 Days. You should see the following screen once you click Run.
Now, just wait for few moments, as the formatting process is going on.
In Applications folder: Right-click on Install MacOS High Sierra app, then choose Show Packages Contents to reveal Contents folder.
The MacOS High Sierra InstallESD.DMG is found under: Contents/SharedSupport/
Now copy this InstallESD.DMG as you need it in TransMac to Create macOS High Sierra Bootable USB Installer on Windows 10.
Ok, so lets continue with TransMac Restore Disk Image to Drive. On this screen, select the InstallESD.DMG file and click OK.
Click Yes, when TransMac Gives you the Overwrite warning.
Now the TransMac will start the process of Restoring High Sierra Image on the Flash Drive. this will take 15-25 minutes, depending on the speed of your flash drive.
Now in 2018 as macOS Mojave is released I would highly recommend you to install macOS Mojave on your mac because it contains many bug fixes, new features and also apfs file system is more stable as compared to macOS high sierra. But if your mac is not supported by macOS mojave then you can download macOS high sierra from these download links.
This article contains links which can be installed on a real mac as well as can be used to build a Hackintosh.
macOS high sierra can still be downloaded from the official app store, whenever Apple releases a new version of macOS they make the older version of macOS hidden but still they can be accessed and installed on a mac.
To download macOS high sierra from apple app store go to this link, it will automatically open the app store if you are opening the link on a mac.
Many have reported that the file downloaded from the official Apple app store is of only 20MB but the actual size of the setup of macOS High Sierra 10.13.6 is 4.9GB. The issue is not fixed till now and is still present. Those who have faced this issue you can use this method to download the full setup of macOS High Sierra from apple servers.
The patch tool is developed by Collin to install macOS high sierra on unsupported Macs. The primary job of the tool is to patch the installer so it can be installed on unsupported Macs but through this tool, you can also download the installer.
To download the full macOS high sierra installer simply download the tool from the developer’s Google drive then run the tool.
Now, from the toolbar click on “Tools” and then click the download option, then wait for the download to complete and the installer will appear in the Apps folder.
If you prefer using torrents or have limited bandwidth per day then you can also download the installer using torrent. This is the official App present in the app store and not modified for Hackintosh, So you can use it to upgrade your mac.
The download links present in this section are from Apple’s server directly. You can download every version of macOS from the apple server directly. However you will not get a single .app format from it, they are in dmg format and are multiple files and cannot be used directly to upgrade your system to macOS high sierra. But you can use these images to make a bootable USB from these images use can restore the images from disk utility into a USB drive and try to boot with it. A more detailed guide can be found in insanlymac.com but it is Hackintosh focused but it will also work on a real mac.
The direct download links for macOS high sierra 10.13.6 from Apple’s servers are:-
This dmg image is converted from the macOS high sierra 10.13.6 app. It is only for building Hackintosh. The dmg already includes clover bootloader, so you can restore the image and install the OS on your pc. Here in HackintoshPro, we have a much detailed guide on how to install macOS high sierra on pc.
While macOS Mojave is released macOS high sierra still can be download and installed from the app store. If you are looking for installing or upgrading to high sierra on a mac I highly recommend you to download the app from the Apple app store because it is the easiest method, but if in some case you are not able to download the app from app store then try downloading the dmg files from the Apple’s servers directly and create a bootable USB from it and then install it on your mac.
To perform a clean installation of macOS Sierra (basically, Mac OS X 10.12), I recommend using a bootable USB flash drive containing the macOS Sierra installer. Below are the steps I took to create the bootable USB flash drive and how I used it to install macOS Sierra.
Note: The macOS Sierra Disk Utility and installer appears to be more buggy and much slower than previous versions. The best advice for installing macOS Sierra is to try again and be very patient (if you expect an operation to complete in 5 minutes, then give it at least 50 minutes).
Download macOS Sierra Installer
The macOS Sierra installer is available from the Mac App Store. Run the “App Store” application, search for “macOS Sierra”, and download it. It will save the installer as an “/Applications/Install macOS Sierra.app” file (about 4.97GB in size).
Note: If you run the macOS Sierra installer to upgrade your Mac, the downloaded file will be deleted automatically after the upgrade is completed. To keep that file, you will want to move it out of the Applications folder so it won’t be deleted after an upgrade. Launch the “Terminal” application and run this command to move the downloaded installer to your user’s “Downloads” folder:
If you are paranoid (doesn’t hurt), you can verify that the installer file was downloaded correctly by verify its checksum. Run the “Terminal” application and this command:
Format USB Flash Drive
The macOS Sierra installer takes up 5.1GB of space on the USB flash drive, so you will need a flash drive with a capacity of 8GB or greater.
Note: If the flash drive is mounted under “/Volumes” successfully when you plug it in, you can skip the following steps to reformat the flash drive. This is because the script we run to create the bootable drive will reformat the flash drive as an initial step. Because I am paranoid, I recommend reformatting the USB flash drive manually anyhow.
Format the USB flash drive using these steps:
Create Bootable USB Flash Drive Installer
To create the bootable USB macOS Sierra installer, run the “Terminal” application and this command:
Update: For macOS 10.14 Mojave (and its predecessor, macOS 10.13 High Sierra), the createinstallmedia command no longer requires the “–applicationpath” and “–nointeraction” flags, so omit them. The command becomes just “createinstallmedia –volume /Volumes/Mojave”.
Note: If the createinstallmedia command returns a “Failed to start erase of disk due to error (-9999, 0)” error, then your current Mac OS X version does not fully support the createinstallmedia tool. Instead, create the USB installation drive manually using instructions from Bootable USB Flash Drive to Install Mac OS X 10.10 Yosemite.
The “createinstallmedia” program will erase the USB flash drive, create a new partition named “Install macOS Sierra”, and copy the installation files to that partition. The output will look like:
The program will pause at the “Copying installer files to disk…” output line above. This step took 20-30 minutes with my Kingston 16GB USB 2.0 flash drive. Yours may take a shorter or longer time. I recommend giving it at least an hour, maybe two, before giving up.
Note: Mac hardware is very finicky about USB flash drives. Initially, I used a Corsair 32GB USB 3.0 drive; however, when I held down the Option key to try to boot with it, the Mac would freeze with a black startup screen. The Kingston 16GB USB 2.0 drive did not have this problem. So if you enounter issues (when erasing and copying) or weirdness (when booting), consider changing to another brand of USB flash drive. If you don’t have another drive, consider at least testing the flash drive to make sure it is not bad or corrupted (“First Aid” in “Disk Utility” is the minimum; google for more powerful tools).
Boot With USB Flash Drive
Note: I recommending connecting the Mac to its AC power adapter before beginning the macOS Sierra installation. The installation may take a long time (an hour or more) and you don’t want the battery to die in the middle.
To boot a Mac with the USB flash drive:
It may take 5-10 minutes or longer to load the installer from the USB flash drive. Sometimes the progress bar may appear to be frozen… just be patient. I would give it at least 30-60 minutes to load before giving up.
Format the Hard Drive
When the installer finishes loading, you will see a “macOS Utilities” window appear. Do the following to format the internal hard drive:
Note: Now and then, I noticed the output of the Erase seems to erroneously double the size of the hard drive. For a 128GB hard drive, the graph shows 120.88GB macOS (in blue) and 120.37 GB Unformatted (in red). I think it is just a user interface bug because when I close Disk Utility and re-open it, the graph then only shows the 120.88GB macOS (in blue).
Install macOS Sierra
Back at the “macOS Utilities” window, do the following to begin the macOS Sierra installation process:
Note: You may encounter strange hardware behavior. On my 13 inch Macbook Pro Retina, the macOS Sierra installer turned the fan on to maximum for the whole duration of the installation. Thankfully, once it finished and rebooted, the fan turned off and stayed off.
The macOS Sierra installer tries to be helpful by telling you how long it will take. Unfortunately, it lies. You should take whatever remaining time it tells you and multiple by 10 (for minutes) or 100 (for seconds). If it says “6 minutes remaining”, that could mean 60 minutes or one hour remaining. Worse, if it says “6 seconds remaining”, you may be staring at that message for 600 seconds or one hour.
The best solution is to be patient. Go grab a bite to eat and watch a movie. Take a long nap or better yet, sleep your 8 hours. I would wait at least 4 hours before giving up.
Note: You can display the installer’s log window (using the menu or pressing Cmd+L). I didn’t find this helpful at all. Even for a successful install, numerous errors are logged; I don’t know what is a critical or non-critical error. And often, you won’t see a progress/status log output for a long time, easily 20-30 minutes. Not seeing any new log statements does not mean that the installer froze. So the logs didn’t do anything for me.
What Does Giving Up Mean?
Giving up means you have accepted defeat. The next step is to retreat and try again. Some suggestions on how to proceed:
Hopefully, this post will help you to do a fresh installation of macOS Sierra.
Some info above taken from: