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.
- Click 'Create a system repair disc.' The link is on the left side of the screen. If you're prompted to enter a Windows installation disc, do so and follow the prompts. You'll only see this message if the files necessary to create a recovery disc are missing.
- This image will be compressed and will make recovery fast and easy. You will need an additional volume or a mounted shared drive with enough space to create the image. There are two ways to create these images: Using Disk Utility or using the hdiutil and asr commands in the terminal.
- Generally speaking, you don't need to create a recovery partition for your Mac: since the launch of Lion (when Apple stopped selling boxed copies of its operating systems, so it knew buyers.
- Learn how create a recovery disk on Mac with Recovery Disk Don't forget to check out our site for more free how-to videos!
Putting the card into the internal SD card slot in your Mac won't work as the Recovery Assistant only polls the USB ports. Put your SD card into a USB adapter, and it will be seen. Now choose the volume you want to store the Recovery Disk on: The Assistant will now create your external Recovery drive.
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.
Requirements
Before 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
To create a bootable USB drive with macOS, use these steps:
Requirements
Before 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
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 drive
Mac Recovery Disc
If 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. Mac external raid.
Search for Command Prompt, right-click the top result, and select the Run as an administrator option.
Type the
diskpartcommand and press Enter.Enter the
list diskcommand to view all drives connected to your computer and press Enter.Type the
select diskcommand followed the number assigned for the USB flash drive (for example,select disk 4), and press Enter.Enter the
cleancommand and press Enter.Type the
convert GPTcommand and press Enter.Enter the
create partition primarycommand 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.)
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Macs are fantastic and exciting pieces of technology, so much that arguments on Windows vs. Macs usually get fierce. These systems have several standout key selling features, one of which is the Mac recovery USB.
Read more to learn all about Mac recovery USB, how to create Mac recovery USB, as well as how to create bootable USB drive and recover data from unbootable mac with it.
What You Should Know about Mac Recovery USB
Mac OS X Lion and higher versions usually create a hidden recovery volume on your startup drive. The reason for this is so that in case of an emergency, you can recover your data using the Disk Utility. Also, the computer keeps a copy of the recovery USB drive that Disk Assistant creates.
How Does It Work?
This is the equivalent of a complete data backup in Windows, but Mac does it automatically, even without an internet connection. The following sections will cover how to create a recovery USB drive on Mac OS X.
To create an OS X Recovery USB drive, here are some things to have:
A usable recovery volume on your computer startup drive. The copy of the recovery volume will be created here.
An external USB drive with not less than 1GB of free storage space.
NOTE: A working recovery volume on your computer is necessary to follow the methods here. Further, these guides will not work for you if you have an older device model that is upgraded on a newer OS.
How to Create a Recovery USB Drive on Mac OS X
All data in the volume will be wiped if you clone the recovery volume on a partition in Disk Utility. Hence, mainly if the USB drive has ample storage space, it is advisable to first prepare the USB drive before creating OS X Recovery drive with Disk Assistant. You do this by creating partitions in the new location that will serve as a special section for the recovery drive. Next, follow the below steps to create a recovery USB drive.
Step 1: Launch Disk Assistant from Applications > Utilities. If it's not there, download it from Apple's support site.
Step 2: Connect a USB drive and run the Recovery Disk Assistant. Select the new recovery disk you just connected and hit Continue.
Step 3: Your system will then create a clone of the recovery volume. After this, click Quit and disconnect the drive.
Note: This method is only possible for Macs running below OS X Lion.
How to Create a Bootable USB Drive on Mac OS X
There are times you may need to create or use a bootable USB drive, eg your Mac crashed or unable to boot. At which time, you can count on iMyFone AnyRecover to get the work done for you.
Preparation for Creating a Bootable USB Drive
Before the process begins, you need to prepare:
1. A working computer
2. A blank USB drive
Mac Recovery Partition Creator
3. Connect the USB drive to the working computer
Then follow the steps below to create a bootable USB drive:
Step 1: Download and launch AnyRecover on the working computer, select 'Recover from Crashed Computer' from the first screen, then click 'Start'.
Step 2: Select the USB drive you want to create bootable drive with, hit 'Create' button to begin.
Step 3: A window will pop up, alerting that your data will be wiped out during the process. If you've backed up your important data, click 'Format' to continue.
Step 4: Once the format completes, it will start to create bootable USB drive.
Extract/Backup Data from Unbootable Mac with AnyRecover Bootable USB Drive
When the USB bootable drive is created successfully, you can follow the on-screen instructions to restart your unbootable Mac then follow the steps below to recover data from your unbootable computer.
Steps to Recover Lost Data from Unbootable Mac Using AnyRecover
STEP 1. Select a location you want to recover data from, then click 'Start'.
STEP 2. AnyRecover will start an 'All-Round Scan' on your selected drive. You can pause or stop the scanning during the process.
STEP 3. When the scan is complete, all your lost files will be displayed with respect to file type.
STEP 4. Locate the files you want and double click to preview them. Once you are sure, click 'Recover' to get them back in no minute.
Why Should You Choose AnyRecover for Data Recovery on Mac
If you want to get back your missing data in the best way possible, or for any Mac recovery needs, we strongly recommend iMyFone AnyRecover Mac Recovery Software. Search through Google for recovery software, and you will see them in the hundreds, but most do not come close to AnyRecover in terms of functionality, ease of use, and compatibility with several models, among other reasons. Still in doubt? We will explain in the next section.
Reasons for Choosing AnyRecover:
Create Recovery Disk Mac
Full Scan: Adopting advanced algorithm, goes deep into data structure to retrieve inaccessible data.
Preview Available: Allowing you to preview scanned files before recovery to ensure accurate recovering.
Crash Computer Recovery: Recover data from crashed or unbootable Mac with MacPE bootable drive.
Encrypted Drive Recovery: Supporting to recover data from Bitlocker encrypted hard drive with password.
All Data Loss Scenario Recovery: Recovers data lost in various scenarios like virus attacks, deleted files, or even emptied trash.
Wide Compatibility: Compatible with all Mac OS versions, including macOS high sierra, macOS Mojave, macOS Lion, etc.
100% Safe: The whole process done by yourself, nobody else would view your data.
This list is far from exhaustive, but it gives you a good idea of why AnyRecover should be your go-to tool.
Conclusion
You see, data recovery on Mac is quite straightforward. If you go through the steps in this guide, you will fix any data loss issues you are experiencing with the help of Mac recovery USB or the recommended tool - AnyRecover Mac Data Recovery.
