Also, I'd be very surprised if that exFAT drive boots in UEFI mode. So that's probably why it might be easier to make it work with exFAT.
Wait until Disk Utility tells you the process is finished, then eject your flash drive.This software currently only support Windows bootable disk, can work with both BOOTMGR and NTLDR boot mode.Click Erase to erase the drive's contents and reformat it.You'll have to choose a file system (such as FAT32 or HFS+) to format on the new USB drive, as well as choosing a name for the drive.Click the "Erase" tab in the window to show options for erasing the flash drive. You'll see all of your currently mounted disks listed in the window that pops up. Launch Disk Utility from Spotlight or your Applications folder.(If you have a newer Mac without USB-A ports, you might be using a USB-C flash drive.) Plug your flash drive into your Mac's USB port.When the drive has reached 100%, type "Exit" and press Enter.Wait for the computer to format your USB drive.
NTFS is the standard choice for PC users, but anyone who switches between Mac and PC might want to choose an alternative like FAT32 or xFAT.
Thus, it's pretty easy to reset a bootable USB yourself, and that's what we're going to show you how to do next. That might sound like a lot, but it's actually a pretty simple process.īoth Windows and macOS include built-in tools to work with file volumes and partitions. Whatever your reasons for resetting a bootable USB, you'll need to reformat the drive, clear the current files from it, and create new partitions. (Maybe the drive is a really cool custom USB drive that you just can't bear to part with!)
You might choose to install a different OS on your bootable USB, or you might decide that you want to turn it back into a standard flash drive. The main reason to reset a bootable USB is that you need the flash drive for something else. Today, we're going to show you the opposite process: how to reset a bootable USB and turn it into a USB flash drive with a clean slate. In another article, we showed you how to create a bootable USB drive. Or you might take it with you so you always have access to your favorite OS and applications, even when you're using an unfamiliar computer. You might use a bootable USB to do a system recovery in an emergency or store a backup image of your disk drive. A bootable USB packs an entire operating system onto a single USB flash drive, along with the necessary files for basic tasks. The bootable USB drive is one of the most useful low cost tools in IT today.