If you’re still using a Mac OS X the time will come when your computer won’t boot, or a problem may arise where you can’t take control of the device, and booting from an OS X installation media will be required.

• Format Flash Drive On Mac For Windows

A broken Mac computer with Mac OS X. A trial copy of the TransMac software. One high quality USB flash drive with 16GB of storage. A copy of Apple’s macOS (DMG file). Now that you have all the necessary ingredients, you’re ready to make a Mac OS X bootable USB using the DMG file of the operating system with the steps below. If you want to use a USB drive on both Mac and Windows, then you need to format the drive to the format supported by both systems. And FAT32 is the format that both Mac and Windows PC support. In other words, you can read and write FAT32 file format on both the operating system. On the left pane, you’ll see all the Windows PC drives listed, right-click the USB drive that you’re intending to use to reinstall Apple’s OS X and select the Restore with Disk Image option. In the warning dialog box, click the Yes button.

If you want to format a hard drive or USB flash drive on your computer, disk formatting tool is the best choice. In this article, we will introduce 5 disk formatting tools for Windows and Mac to help you securely format hard drive/USB flash drive or memory card on a PC or a Mac.

This is why it’s recommended that you make a Mac OS X bootable USB when your Mac is in working conditions. However, if you find yourself on a scenario where your device (iMac, MacBook Pro, Air, Mac Pro or Mini) is not responding and you happen to have a Windows 10 device, then you can still be able to make a USB bootable installation media for your Mac OS X to reinstall the operating system using the Recovery Assistant.

These instructions will also work for Windows users who are running Mac OS X on a virtual machine and need to upgrade to the latest version. For instance, to OS X Yosemite.

Requirements

Before you dive into this guide, you’ll need a few things:

• A broken Mac computer with Mac OS X.
• A trial copy of the TransMac software.
• One high quality USB flash drive with 16GB of storage.
• A copy of Apple’s macOS (DMG file).

Now that you have all the necessary ingredients, you’re ready to make a Mac OS X bootable USB using the DMG file of the operating system with the steps below.

Create Mac OS X bootable USB installation media

Before you can use TransMac, you first need to partition your USB flash drive with a GPT partition, as a normal MBR partition may not work. To do this, you’ll need to use the Diskpart command-line utility on Windows 10.

Setting up GPT partition

Use these steps to set up a USB drive with a GPT partition:

1. Open Start on Windows 10.

2. Search for Command Prompt, right-click the top result and select the Run as Administrator option.

3. Type the following command to open Diskpart and press Enter:

4. Type the following command to determine the USB flash drive and press Enter:

5. Type the following command to select the storage and press Enter:

   Quick tip: The select disk 1 command as an example, but you have to replace 1 with the number of the flash drive you want to use.

6. Type the following commands to delete everything from the USB thumb drive and press Enter:

7. Type the following command to convert the drive into a GPT partition and press Enter:

8. Type the following command to select the new partition and press Enter:

After you complete the steps, the USB flash drive from MBR to GPT format, you can use the steps below to create a bootable USB installation media to install Mac OS X.

Create USB install media

Use these steps to create a bootable media to install Mac OS X:

1. Download and install a copy of TransMac.

   Quick note: TransMac is a paid software, but it has a 15-day trial solution, that give us more than enough time to move the DMG files to the USB drive from Windows. (If you want to support the developer, you can purchase the full version.)

2. Insert the USB drive that you’ll use to fix your installation of OS X. (Remember that all the data in the USB will be erased. Make sure you take off any important documents.)

3. Right-click the TransMac software icon and Run as administrator. (You’ll be prompted to Enter Key or Run, because we’ll be using it once, click the Run option.)

4. On the left pane, you’ll see all the Windows PC drives listed, right-click the USB drive that you’re intending to use to reinstall Apple’s OS X and select the Restore with Disk Image option.

5. In the warning dialog box, click the Yes button.

6. Use the Restore Disk Image to Drive dialog box to browse for the DMG file with the installation files for Mac OS X Yosemite in this case, and click the OK button to create a bootable USB of the operating system.

   Now, you’ll have to wait a long time. No kidding. It could take one or two hours to complete the process depending on your computer and other variables.

Once your bootable USB installation media is ready, remove it and insert it into your Mac, power it on, holding down the Option key, and select the USB you just created to reinstall Mac OS X.

If you’re having issues trying to create a bootable media, you can get a USB flash drive that comes with Mac OSX ready to install.

Summary :

When you get a new USB drive and want to format it, you may wonder: what is the best format for USB drive? Well, the best format for USB drive is different for different operating systems and devices. This article will show you how to choose the best format for USB flash drive.

Nowadays, USB flash drive is widely used on various electronic devices due to its portability. Before you use a new USB drive, you need to first format it. Well, what is the best format for USB drive? How to choose the best format for USB drive?

Before you try to choose the best format for your USB drive, you need to know what file system it is in.

What Is File System?

What is file system?

In computing, a file system or filesystem controls how data is stored and retrieved. With a file system, the information placed in a storage medium will be separated into pieces and each piece will have a name, so the information is easily isolated and identified this way. Each group of data is called a file.

File system is the structure and logic rules used to manage groups of information.

File systems can be used on a numerous variety of storage devices and media types. There are many different types of file systems; each of them has different storage devices that they are the most suitable for.

What is the best format for USB drive? Well, it depends on how you plan to use your USB drive.

How to Choose the Best Format for USB drive

Basically, to choose the best format for USB flash drive. The two most important things you need to consider are the operating systems you plan to use it with and the sizes of the files that you are most likely to transfer and store.

The following contents list some commonly used file systems. To better understand which one is the best file system for USB drive according to your needs, you can view the compatibility, pros and cons of these file systems one by one.

When you get a new USB drive, you can follow this guide to choose the best thumb drive file system for your portable drive.

NTFS vs HFS+ vs FAT32 vs exFAT vs Ext 2,3,4

1. NTFS: The New Technology File System (NTFS), a proprietary journaling file system developed by Microsoft, is the default file system of the Windows NT family.

• Compatibility: Windows XP/7/8/10, Linux (read-only for some distributions), MacOS(read-only), Xbox One
• Pros: journaling, no realistic file size limitations; support for file compression, high security
• Cons: can be read-only for Mac OS, or be written by Mac with the help of third-party software

2. HFS+: The Hierarchical File System (HFS+) is the file system modern MacOS versions use by default. If you want to use your USB drive on Mac devices, you can format USB to HFS+.

• Compatibility: MacOS, Linux(readonly), Xbox 360/One
• Pros: journaling, encrypt or compress files or folders
• Cons: cannot be read by the Window unless using third-party software

3. FAT32: The File Allocation Table 32 (FAT32) was the standard Windows file system before NTFS. And it is widely recognized by almost all operating systems. Most portable devices also support FAT32.

• Compatibility: Windows, Mac, Linux, Chrome OS, Android, Chrome OS, Android, Xbox 360/One, PS3, PS4, printers, projectors…
• Pros: compatible with almost all versions of Windows, Mac, Linux and practically any device with a USB port
• Cons: cannot store a single file which is larger than 4GB; cannot create a FAT32 partition that is larger than 8 TB (Windows only recognizes 2TB)

4. exFAT: The extended File Allocation Table (exFAT) is similar to FAT32, but does not have the limits of FAT32 file system. It can be used where NTFS is not a feasible solution, but a greater file-size limit than the standard FAT32 file system is required.

• Compatibility: Windows, Mac OSX 10.6.5 and above, PlayStation 4 (with MBR, not GUID), Xbox One, Android
• Pros: good for larger file sizes and drives, compatible with both Windows and Mac OS
• Cons: Microsoft restricts its usage by license obligations.

5. Ext 2/3/4: The extended file system (Ext) was the first file system created specifically for Linux. If you plan to use the USB drive on Linux computers, you can format it to this file system.

• Compatibility: Linux, Xbox 360/One
• Pros: support for large file sizes and large drives
• Cons: cannot be read and written by Windows unless with third-party software, Ext 2 lacks journaling.

After the comparison, have you picked your best format for USB drive?

All in all, FAT32 is actually compatible for the most types of systems. It’s practically compatible with any device with a USB port, while NTFS and exFAT are not so much. HFS+ is specially used on MacOS, and Ext 2, 3, 4 file systems are created by Linux.

FAT32 - The Best Format for USB Drive

As you can see from above, FAT32 is supported on almost all devices, which makes it the choice of file system format selected by the most people for USB drive.

As long as you don't use it to transfer a single file larger than 4 GB, FAT32 is perfect and can be the best portable file system for USB drive due to its compatibility.

So we draw the conclusion that although FAT32 has its limits, it’s the best file system to use for most portable drives like USB drive, SD card, etc. Besides, most USB drives have small capacity because they are hardly ever used as the main data storage. Therefore, they will not be used to store large files. The limit will not affect you too much.

How to Format USB Drive in Windows or Mac

After choosing the best format for USB drive according to your needs, you might start to wonder: how do I format USB drive to NTFS/FAT32/exFAT/EXT 2,3,4/HFS+ in Windows operating system or Mac? Well, don't worry. if you need to format USB drive to NTFS/FAT32/exFAT/EXT 2,3,4/HFS+ file system, please follow the steps as below.

Well then, how to format USB drive to FAT32/NTFS/exFAT/EXT 2,3,4/HFS+ if you have the need. Don't worry, the following part will show you the solution for Windows and Mac OS users.

The process for formatting a drive is different depending on the system you’re using. Let’s see how to format USB drive on a Windows PC first.

Format USB drive on Windows Operating System

To format USB drive in Windows operating system, it is recommended to use the free USB formatter MiniTool Partition Wizard Free Edition.

MiniTool Partition Wizard Free Edition is a free partition manager & USB formatter. It can help you resize partition, extend partition, format partition, convert FAT32 to NTFS, check file system, copy partition, migrate OS to HD/SSD and so on. As a free partition manager, it is equipped with many advanced features that cannot be found in Disk Management.

With its user-friendly interface, this free partition manager is worth trying.

First, you need to connect the USB drive to your Windows PC. Then you can follow the steps as below to format USB drive for Mac and Windows on a Windows PC.

Step 1. Download MiniTool Partition Wizard Free Edition by clicking the following button. Install and launch it to get its main interface.

Step 2. Right-click the drive you want to format and select Format Partition from the left action panel.

Step 3. At this page, specify the partition label, file system as well as cluster size. The cluster size is set by default.

Step 4. After resetting these parameters, you can click OK.

Step 5. Click Apply button on the upper left corner to allow the pending operations.

If you need to format USB drive to FAT32/NTFS/exFAT/Ext2/Ext3/Ext4, MiniTool Partition Wizard Free Edition can be your best USB formatter. You can also change your USB format with this tool at ease. Try it now!

Format USB Drive in Mac

If you want to use the USB drive on your Mac computer only, formatting it to be entirely Mac compatible file system is highly recommended, such as HFS+ file system. If you want to use the drive between a Windows and Mac machine, you can format it to FAT32.

You can follow the steps as below to format USB drive to HFS+ or FAT32 in Mac. Here I will format the drive to FAT32 for demonstration.

Step 1. Connect the USB flash drive to your Mac computer.

Step 2. Go to Applications and then click Utilities.

Step 3, Double click Disk Utility to open it.

Step 4. Select your USB flash drive on the sidebar, choose Erase.

Step 5. Name the USB drive, choose the MS-DOS (FAT) for Format, Master Boot Record for Scheme. Then click Erase.

Step 6. When it is finished, your USB drive will be formatted to FAT32 as the file system.

Wrapping Things Up

If you don't know how to choose the best format for USB drive, this article could be a big help. If you don't know how to format USB drive to the best file system, this article can also resolve this issue for you.

Format Flash Drive On Mac For Windows

If you have a different opinion about the best format for USB drive, please don't hesitate to share it with us. If you need any help formatting USB drive in Windows, you may leave it in the following comment zone. And we will reply you as soon as possible. You may also contact us via [email protected] if you need help.