Make A Bootable Usb Mac High Sierra

Make A Bootable Usb Mac High Sierra

It does not matter whether you use macOS or Windows 10. It's just a matter of time until your device will refuse to start, which could happen for many reasons, including (and not limited to) file corruption, hardware failure, and buggy update. If the unexpected happens with an Apple computer, you can use a macOS bootable USB with the installation media to repair it.
This is one of the main reasons you should consider making a macOS bootable USB when your device is working properly. However, if none of your devices (MacBook, MacBook Air, MacBook Pro, iMac, Mac Pro, or Mac Mini) aren't working when you need them the most, then you can use a PC to rescue your Apple device. You can use a Windows 10, Windows 8.1, or Windows 7 device to quickly create a USB bootable installation media to reinstall macOS Catalina or Big Sur on your Mac.
In this guide, you'll learn the steps to create a macOS Catalina bootable USB installation on Windows 10, which you can use to reinstall or upgrade the Apple OS.
The simplest way to create a boot USB drive is to download DiskMaker X and use it to create your drive. Generally, the latest version supports only the latest version of macOS; if you want to install something older than macOS High Sierra, check the list of older versions and download one that's compatible with your chosen operating system.
Quickly create a macOS bootable USB on Windows. Now make bootable USB using the TransMac software (follow instructions that are given above). Now connect the USB and power on your Mac computer while holding the option key and then select the USB Flash media to run the installation. Learn using USB on MAC (Apple support page).
Select the type of disk being used. Note that if you're using a 8GB (or larger) USB thumb drive, it will be completely erased. DiskMaker will erase any complete volume that you signify, so if you wish to make a disk that can install Yosemite, El Capitan, and Sierra, consider using Disk Utility (found in the Applications/Utilities folder) to partition the drive into three separate volumes.
TransMac creates a macOS USB bootable drive warning. Once you complete the steps, you can now insert the USB flash drive on your Mac computer to install, reinstall, or upgrade the operating system to the latest macOS version, which can be Sierra, Catalina, Big Sur, or higher. Create a GPT partition on USB flash drive. I want to create a bootable usb for high sierra and i cant use my mac os because of hard replacement.i did exactly what this article says and everything went find and bootable flash created successfully but after trying to boot from it by holding option key i have only macintosh HD and recovery HD there and flash doesnt show up.
RequirementsBefore proceeding, you'll need the following:
Broken Mac computer running macOS (version 10.12, 11, or later).
A trial copy of the TransMac software.
One high-quality USB flash drive with 16GB of storage.
Copy of macOS (DMG file).
Create macOS bootable USB installation media

How to make a bootable usb mac high sierra

To create a bootable USB drive with macOS, use these steps:
Download and install TransMac on the Windows 10 device.
Quick note: This is a paid software, but it gives you a 15-day trial, which is more than enough time. (If this works for you and you want to support the developer, you can purchase the full version.)
Connect the USB flash drive. (If you have any data on the flash drive, remember to make a backup, as everything on it will be erased.)
Right-click the TransMac app and select the Run as administrator option.
Click the Run button. (If you're using the trial version, wait 15 seconds.)
Right-click the USB flash drive, select the Format Disk for Mac option from the left navigation pane.
Quick note: You want to do this before creating the bootable media because there is a good chance that the drive was formatted using a Windows device. If this is the case, the chances are that it's using an MBR partition, and the USB drive needs a GPT partition to work on a Mac.
Click the Yes button to format the drive on the warning message.
Confirm a name for the drive. For example, 'macOS bootable USB.'
Click the OK button.
Click the Yes button.
Click the OK button.
Right-click the USB flash drive and select the Restore with Disk Image option from the left navigation pane.
Click the Yes button to confirm the erase of the USB flash drive data.
Click the browse button on the right.
Select the .dmg file with the macOS installation files.
Click the Open button.
Click the OK button.
Click the Yes button.
Once you complete the steps, you can now insert the USB flash drive on your Mac computer to install, reinstall, or upgrade the operating system to the latest macOS version, which can be Sierra, Catalina, Big Sur, or higher.
Create a GPT partition on USB flash driveIf the USB flash drive is not working with TransMac, it could still be a partition problem. In this case, you may need to redo the entire process again. However, this time you should use the following steps to use the Diskpart command-line utility on Windows 10 to create the appropriate GPT partition, and then follow the above instructions.
To create a GPT partition on a removable drive, use these steps:
Open Start.
Search for Command Prompt, right-click the top result, and select the Run as an administrator option.
Type the diskpart command and press Enter.
Enter the list disk command to view all drives connected to your computer and press Enter.
Type the select disk command followed the number assigned for the USB flash drive (for example, select disk 4), and press Enter.
Enter the clean command and press Enter.
Type the convert GPT command and press Enter.
Enter the create partition primary command and press Enter to complete the process.
Once you formatted the USB flash drive with a GPT partition, you can use the instructions mentioned above to use TransMac to create a bootable media, but this time skip steps No. 5 through 10 and continue on step 11.
After the process completes, which can take up to an hour, connect the USB flash drive and power on your Mac holding down the Option key, select the USB drive to begin installing macOS.
If you have problems creating the bootable media, you can get a USB flash drive that comes with macOS Sierra, El Capitan, Catalina, etc., on it with the link mentioned below. (I haven't tried it personally, but it's worth the try if nothing works.)
If you're using both Windows and macOS, you've to deal with when mac refuses to boot. The reason behind can be from a number of things that could go wrong. This includes system failure, bad updates, power failure, hardware failure. Unless there is a hardware problem that only can be diagnosed at the apple center you can fix your Apple computer.
It is an excellent practice always to have a bootable macOS USB, which you can easily create using macOS operating system. But since we're here, you probably can want to make bootable USB using Windows 10. Let's be real, and there are more Windows computers compared to MAC. Fortunately, you can use a Windows computer to create a bootable USB flash drive.
In this article, we'll help you with the instructions to create a bootable MacOS USB installation media from a Windows 10 computer. So that you can use that USB to install or reinstall (upgrade) Apple's MacOS. You can create a macos Catalina/sierra bootable USB using this guide to fix your operating system.
What's needed?You will need a few things before you get started. The first essential thing in it is a USB drive would be awesome if you use a USB 3.0, but you can get the work done using slow USB as well. So, in contrast, you need these following things.
One high-quality USB flash drive with 16GB of storage.
TransMac software.
MacOS operating system image (DMG file).
How to Create a macos Catalina bootable usbThe guide is simple and straightforward if you follow thiese step.
Download and install TransMac on your Windows PC. It's paid software with 15-day trial, so you can use it within the time to create a bootable MacOS USB flash drive. If you like the software and to support the developer you can buy the full version.
Plug the USB drive to your Windows computer that you'll be using to fix your MacOS. And we are going to tell you something straightforward – backup if things stored in USB Drive.
Step 1. Open the TransMac, and select Run as administrator. If you're using the trial version, wait 15 seconds, and click Run.
Step 2. Use your USB drive right-click on it and select format disk format this will format the USB drive so that it can be used to store the Mac OS operating system. One thing you need took care of that the USB drive needs in GPT partition in order to work on a Mac computer otherwise it won't boot.
When it prompts select a name for your USB it doesn't matter but just do it and click ok. If the formatting completed successfully, click OK to continue.

Make bootable usb mac high sierra windows 10

To create a bootable USB drive with macOS, use these steps:
Download and install TransMac on the Windows 10 device.
Quick note: This is a paid software, but it gives you a 15-day trial, which is more than enough time. (If this works for you and you want to support the developer, you can purchase the full version.)
Connect the USB flash drive. (If you have any data on the flash drive, remember to make a backup, as everything on it will be erased.)
Right-click the TransMac app and select the Run as administrator option.
Click the Run button. (If you're using the trial version, wait 15 seconds.)
Right-click the USB flash drive, select the Format Disk for Mac option from the left navigation pane.
Quick note: You want to do this before creating the bootable media because there is a good chance that the drive was formatted using a Windows device. If this is the case, the chances are that it's using an MBR partition, and the USB drive needs a GPT partition to work on a Mac.
Click the Yes button to format the drive on the warning message.
Confirm a name for the drive. For example, 'macOS bootable USB.'
Click the OK button.
Click the Yes button.
Click the OK button.
Right-click the USB flash drive and select the Restore with Disk Image option from the left navigation pane.
Click the Yes button to confirm the erase of the USB flash drive data.
Click the browse button on the right.
Select the .dmg file with the macOS installation files.
Click the Open button.
Click the OK button.
Click the Yes button.
Once you complete the steps, you can now insert the USB flash drive on your Mac computer to install, reinstall, or upgrade the operating system to the latest macOS version, which can be Sierra, Catalina, Big Sur, or higher.
Create a GPT partition on USB flash driveIf the USB flash drive is not working with TransMac, it could still be a partition problem. In this case, you may need to redo the entire process again. However, this time you should use the following steps to use the Diskpart command-line utility on Windows 10 to create the appropriate GPT partition, and then follow the above instructions.
To create a GPT partition on a removable drive, use these steps:
Open Start.
Search for Command Prompt, right-click the top result, and select the Run as an administrator option.
Type the diskpart command and press Enter.
Enter the list disk command to view all drives connected to your computer and press Enter.
Type the select disk command followed the number assigned for the USB flash drive (for example, select disk 4), and press Enter.
Enter the clean command and press Enter.
Type the convert GPT command and press Enter.
Enter the create partition primary command and press Enter to complete the process.
Once you formatted the USB flash drive with a GPT partition, you can use the instructions mentioned above to use TransMac to create a bootable media, but this time skip steps No. 5 through 10 and continue on step 11.
After the process completes, which can take up to an hour, connect the USB flash drive and power on your Mac holding down the Option key, select the USB drive to begin installing macOS.
If you have problems creating the bootable media, you can get a USB flash drive that comes with macOS Sierra, El Capitan, Catalina, etc., on it with the link mentioned below. (I haven't tried it personally, but it's worth the try if nothing works.)
If you're using both Windows and macOS, you've to deal with when mac refuses to boot. The reason behind can be from a number of things that could go wrong. This includes system failure, bad updates, power failure, hardware failure. Unless there is a hardware problem that only can be diagnosed at the apple center you can fix your Apple computer.
It is an excellent practice always to have a bootable macOS USB, which you can easily create using macOS operating system. But since we're here, you probably can want to make bootable USB using Windows 10. Let's be real, and there are more Windows computers compared to MAC. Fortunately, you can use a Windows computer to create a bootable USB flash drive.
In this article, we'll help you with the instructions to create a bootable MacOS USB installation media from a Windows 10 computer. So that you can use that USB to install or reinstall (upgrade) Apple's MacOS. You can create a macos Catalina/sierra bootable USB using this guide to fix your operating system.
What's needed?You will need a few things before you get started. The first essential thing in it is a USB drive would be awesome if you use a USB 3.0, but you can get the work done using slow USB as well. So, in contrast, you need these following things.
One high-quality USB flash drive with 16GB of storage.
TransMac software.
MacOS operating system image (DMG file).
How to Create a macos Catalina bootable usbThe guide is simple and straightforward if you follow thiese step.
Download and install TransMac on your Windows PC. It's paid software with 15-day trial, so you can use it within the time to create a bootable MacOS USB flash drive. If you like the software and to support the developer you can buy the full version.
Plug the USB drive to your Windows computer that you'll be using to fix your MacOS. And we are going to tell you something straightforward – backup if things stored in USB Drive.
Step 1. Open the TransMac, and select Run as administrator. If you're using the trial version, wait 15 seconds, and click Run.
Step 2. Use your USB drive right-click on it and select format disk format this will format the USB drive so that it can be used to store the Mac OS operating system. One thing you need took care of that the USB drive needs in GPT partition in order to work on a Mac computer otherwise it won't boot.
When it prompts select a name for your USB it doesn't matter but just do it and click ok. If the formatting completed successfully, click OK to continue.
Step 3. Again from the left sidebar right-click on the USB drive and select restore with disk image.
Step 4. Now browse to the location where the Mac OS system image file is located and click ok to load it.
Step 5. Click Yes to create the macOS USB bootable media.
It will take a few minutes to complete the process because the Mac Operating System is larger than any other operating systems like Windows and LINUX in size. Now plug the USB drive to Mac computer in order to install, install or upgrade the operating system to the latest version of Mac OS, which can be Sierra or later.
THE TOOL CAN
Apple File System (APFS) volume read support.
Open Mac APFS/HFS/HFS+ format disk drives, flash drives, CD/DVD/Blu-ray media, HD floppies, dmg, dmgpart, sparsebundle and sparseimage files.
Copy files to Mac HFS+ disks and dmg images.
Format as HFS+ for Mac .
Save and restore images of disks and flash drives.
Create, compress, expand and split dmg files.
Built in burner functionality to burn ISO and dmg files directly to CD/DVD/Blu-Ray.
Read Mac multisession and hybrid CDs.
View partition layout.
How to create a GPT partition on a USB flash driveIf the USB flash drive is not working using TransMac, it could be still a partition problem. In this case, you want to redo the entire process again, but this time use the following steps to use the Diskpart command-line utility on Windows to create the appropriate GPT partition.
Open Command Prompt as an administrator. Type cmd in run dialog or open it from the start menu.
Type the diskpart command and press Enter. This will display that is connected to your computer.
Enter the list disk command to view all drives connected to your computer and press Enter. This command will show all of the partitions inside of a disc.
Type the select disk command followed the number assigned for the USB flash drive (e.g., select disk 4), and press Enter. This command will select the disc partition of your choice.
Enter the clean command and press Enter. This erases and formats the disc.
Type the convert GPT command and press Enter. This convert master boot record to new GPT.
Enter the create partition primary command and press Enter to complete the process.
Quickly create a macOS bootable USB on WindowsNow make bootable USB using the TransMac software (follow instructions that are given above). Now connect the USB and power on your Mac computer while holding the option key and then select the USB Flash media to run the installation.
Learn using USB on MAC (Apple support page)
Learn more about making bootable USB.
Make Bootable Usb Mac High Sierra Windows 10Article Contents