- Insert the USB flash drive to the computer and let the PC detect it. Open ' My Computer ' and right-click on the flash drive disk name.
- With it, you have the freedom to write, copy and edit files SSD, HDD and flash drives formatted with Mac OS Extented. HFS for Windows To use it, download HFS for windows (here) and install on your PC.
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.
Insert a USB flash drive to your Mac. Make sure it's at least 8GB, which is usually marked on the USB stick. You can also check by right-clicking the USB drive on your desktop and clicking Get Info.
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 usb
The 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 drive
If 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 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)
Learn more about making bootable USB.
Article Contents
By Adela D. Louie, Last updated: August 27, 2019
In today’s technology, if you buy a USB hard drive, you can just simply use it directly using your Mac. However, there are instances that not unless that your flash drive is build to use for your Mac, you will not be able to format it.
Why is this so? The answer to this is because most of the computers actually run on Windows and they actually use a different file format which is known to be the Fat32.
Those drives that are formatted in Fat32 can be used in your Mac for reading and writing but there might be an instance that you might experience some trouble once that you use your macOS native format.
So, in case that you have a flash drive that is formatted into Fat32 or any type of format rather than having a Mac OS Extended or AFPS, then we are going to show you in this article how you could possibly format your flash drive using your Mac.
Part 1: How To Format Flash Drive On Mac
Here are the steps that you need to follow. Do these steps and you will then be able to format your flash drive on your Mac.
Step 1: Go ahead and plug in your flash drive in the USB port on your Mac.
Step 2: After that, go ahead and launch the Finder and click on your flash drive detected by your Mac.
Step 3: See to it that there are no files saved on your flash drive that you no longer need. This is because formatting your flash drive will remove all the data that is stored in it. If there are some files that you want to remain, simply copy these files to your Mac.
Step 4: After getting all the files that you need from your flash drive, go ahead and click on “Applications” and then click “Utilities” and then choose “Disk Utility”.
Step 5: And then, go ahead and click on your flash drive from the sidebar.
Step 6: Once that you have chosen your flash drive, go ahead and click on the “Erase” button located at the toolbar at the top of the window.
Step 7: On the next window that will appear on your screen, go ahead and key in a name for the flash drive that you are formatting from the box next to the “Name” option.
Step 8: And then select a format that you want from the drop-down menu.
Step 9: No, if you have previously stored a data on your flash drive that is highly sensitive, just go ahead and click on the Security Tab.
Step 10: From the security tab, go ahead and choose the level of the security that you want. The more that you move to your right, then the more “passes” the deleted tool will be but it will securely delete your files. However, doing to so will take more of your time to format your flash drive.
Step 11: After that, go ahead and click on the “OK” button and then click on the “Erase” button.
Part 2: Choosing the Right Format
There are formats that you need to choose from depending on the Mac that you are using. If you are using the macOS Sierra or a later version, then you have to options to choose from. One is the AFPS and the other one is the Mac OS Extended. The question now here is that which one should you choose.
You have to keep in mind that once you have formatted your flash drive into AFPS, then those Macs that are running on macOS that is older than the High Sierra will not be able to recognize it.
So, if you would want to use your flash drive on Macs that are running on High Sierra, then you have to choose the Mac OS Extended format.
However, you also have to know that AFPS is actually optimized for SSD or “solid state drive” and it includes flash drives.
That is why if you are going to reformat a flash drive on your Mac, then you should definitely choose the AFPS format as it is known to be the most reliable and faster than the Mac OS Extended. But again, that is if you do not have any plans in using it on a pre-High Sierra course.
And lastly, if in case that you would want to use your flash drive as one of your backup options in Time Machine, then you should definitely have it formatted in Mac OS Extended.
This is because Time Machine does not have the ability yet to backup flash drives that are formatted in AFPS. So, if you are using an AFPS formatted flash drive on Time Machine, it will just ask you to format your flash drive into Mac OS Extended.
Part 3: How To Format Flash Drive To Fat32 On Your Mac
Once that you have a flash drive, then what you would need to do is to have it formatted into Fat32. Why? This is because once that you have formatted your flash drive into Fat32, then you will be able to use it on both Windows and Mac PC when you want to save or transfer files with either of the two.
The Fat32 format can be used – read or write – with both Mac and Windows PC and because of this, it makes the device more versatile.
However, there are some limitations that you should need to know such as an individual file should only have a maximum size of 4GB. But do not worry because there is still something you can do about it and that is by formatting it to exFAT.
The exFAT format will not give any limitations on the file size that you are going to store on your flash drive and you can still use it on both Windows and Macs that are running in Mac OS X Snow Leopard or later version. For you to be able to format your flash drive into Fat32, here is what you need to do.
Step 1: Go ahead and connect your flash drive to your Mac.
Step 2: And then, go to Application and then click on Utilities.
Step 3: After that, go ahead and launch Disk Utility.
Step 4: And then, go ahead and click on your flash drive located at the sidebar in Disk Utility.
Step 5: After that, click on 'Erase' in the Disk Utility window.
Step 6: After that, go ahead and enter the name for the flash drive that you formatted.
Step 7: And then, choose the Format menu and then select MS-DOS (FAT32) or the ExFAT.
Step 8: After that, go ahead and click on the 'Erase' button.
Once that you are done with the provided steps for you, your flash drive will then completely wipe out all the data stored and it is re-formatted into either an ExFAT or FAT32 depending on what you have chosen on the previous steps.
Part 4: Getting Your Mac System Run Fast
Now that you have known with how you can format your flash drive on your Mac, now it is time for you to get your Mac cleaned up.
Getting your Mac clean on a regular basis after doing tasks can help your Mac maintain its speed and will also give you more space for your storage.
There is one great option for you to clean up your Mac in no time and this is by using the software called the FoneDog Mac Cleaner.
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The FoneDog Mac Cleaner will help you to speed up your Mac with just a few simple clicks. This software can also help you in scanning your Mac faster and find all of your junk files on your Mac.
It also has the capability of checking your Mac's system status which includes your CPU status, your memory usage and more. This way, you will have an idea of what is the data that is actually eating up a lot of storage space on your Mac and which is causing it to perform slower than the usual.
The FoneDog Mac Cleaner will not only help you in removing all of the junk files that you have on your Mac. It can also help you to completely uninstall applications that you no longer use together with all the files that are associated with that app. It can also serve as a Similar Image Finder, an Extension Manager, a Duplicate Finder, and more.
For you to start cleaning up your Mac, all you have to do is to follow all the steps that we are going to provide to you. Do not worry, this is really simple and easy to follow and it will not consume a lot of your time. In addition, the screenshots below are shown under the dark mode on Mac.
Step 1: Download and Install
Have the FoneDog Mac Cleaner downloaded from our official website at https://www.fonedog.com/mac-cleaner/. Once that you have completely downloaded the program, go ahead and have the program installed on your Mac.
Step 2: Launch the Program
After that installation process is complete, go ahead and run the program on your Mac. Once that the program is up and running, you will be able to see on your screen the system status of your Mac. With that information, you will have an idea which files are taking up a lot of space on your Mac.
Step 3: Select Cleaner
Cleaner provides you with the cleaning function for the system, photo, email, files, apps and other fields on your Mac.
Step 4: Choose iTunes Junk
Here, take iTunes Junk as an example to show you how to clean junks on your Mac to make your Mac run faster.
Note: As for the other tools like 'System Junk' and 'Email Junk', the steps to clean up them is the same as that in 'iTunes Junk' tool.
Step 5. Scan iTunes Files
After clicking into the page of iTunes Junk, press the Scan button to start scan all the iTunes backups, Cache, updates and downloads on your Mac.
Step 6: Review and Select Items
After that scanning process is completely done, you will be able to see on the left side of your window screen a list of category folders of all the junk files of iTunes that you have on your Mac. If you click each folder, you will see on the right side of your screen all the items that each folder contains.
Review each item on each folder for you to make sure that all the junk files shown on your screen are unnecessary any more.
Once that you are satisfied with the result, you can go ahead and simply click on the 'Clean' button to clean up all your junk files.
Step 7: Confirm Your Choice
There would be a pop-up window called Confirmation turning up. Please press the 'Confirm' button if you are sure to delete the selected files; otherwise, please press the Cancel button and return to the previous page.
Step 8: Cleaning Done
Once that the cleaning process is done, all those unnecessary files that you have there will all be deleted from your Mac.
Part 5: Conclusion
How To Format Flash Drive
Usb Format Mac And Windows
Now, as you can see, formatting your flash drive on your Mac is a very easy thing to do. All you need to have is the knowledge on how you can do.
And keep in mind that if you are going to format your flash drive, make sure that you choose the right format so that you can use it in any PC.
Formatting is easy, just like in cleaning up your Mac. Getting your Mac tidy is one of the best things that you should do for you to be able to maintain the speed of your Mac and of course for you to get more space on your storage. And the best way for you to clean up your Mac is by using the FoneDog Mac Cleaner.