"When I copy an ISO file from macOS to a USB disk yesterday, I got an error message saying 'The item can't be copied because it is too large for the volume's format'. What does too large for the volume's format mean? Why does this problem occur?"
Many people still use a USB flash drive or an external hard drive to transfer files between computers. And the item can't be copied because it is too large for the volume's format is not an unfamiliar problem during the transfer of data on USB storage.
This article will show you how to fix the item can't be copied because it is too large for the volume's format error on Mac and Windows computers.
The reason for can't be copied because it is too large for the volume's format error is because the USB or hard drive your transfer files to is in the FAT32 file system, which can only support up to 32GB partitions, and a single file can only support up to 4GB.
When you copy a 4GB or larger file from your computer or Mac to a USB flash drive, SD card, or other memory cards in FAT32, you will come across this issue even there is plenty of space on the storage device. This is due to the FAT32 limitation.
In this case, the solution is to format the device as exFAT (Extended File Allocation Table) or NTFS (NT File System). Learn the differences between FAT32, NTFS, and exFAT.
If you are troubled by too large for the volume's format problem when copy files between Mac device and USB drive, you can reformat the drive to exFAT.
exFAT is a file system suitable for USB flash memory devices introduced by Microsoft in Windows and compatible with macOS. It can solve the problem that FAT32 and other files that do not support 4G and larger files. For flash devices, exFAT is more suitable than the NTFS file system.
Compared to FAT file systems, EXFAT has a theoretical maximum volume capacity of 64EB and currently supports up to 128PB. The maximum size of a single file can be up to 16EB, and the maximum number of files in the same directory can be up to 2,796,202.
Step 1. Open your Mac. Run Disk Utility by searching it in the spotlight or start it from Applications/Utilities.
Step 2. Select your USB flash drive or external hard drive on the left side.
Step 3. Click the "Erase" tab. Then, the hard drive erasing window will pop up.
Step 4. Set a name and choose GUID Partition Map for the Scheme. Choose exFAT from the drop-down menu for Format, and name your drive. Click "Erase".
In addition to the exFAT, if you want to transfer files larger than 4GB to your USB drive on Windows 11/10, you can also format FAT32 as an NTFS file system, which completely resolves the storage capacity limitation, and can support up to 16EB.
To change FAT32 to NTFS, you have two ways to do it: one is converting FAT32 to NTFS without data loss and the other is formatting the hard drive to NTFS, which will clear all the files. Here is how to make it.
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What's more, Qiling Partition Master Free is also good at various partition converters.
Take the steps below to convert FAT32 to NTFS to solve the item can't be copied because it is too large for the volume's format problem on Windows 11/10.
Step 1. Install and launch Qiling Partition Master on your computer.
Step 2. Select a FAT32 partition, right-click on it and select "Convert to NTFS". If you need to convert a storage device such as SD card or USB flash drive to NTFS, insert it into your PC first and repeat the previous operation.
Step 3. Click "OK" on the pop-up dialog box to continue.
Step 4. Now the converting process will start automatically. Wait until the operation process is finished.
You can also format your USB drive to NTFS by using Disk Management and File Explorer. Remember to back up your files at first.
Format to NTFS in Disk Management
Step 1. Connect your USB drive to the computer.
Step 2. Right-click the Windows button and choose "Disk Management".
Step 3. Find your USB drive. Right-click it and choose "Format".
Step 4. Follow the on-screen instructions to set a new label and choose NTFS. Then click "OK" to complete the formatting.
Format FAT32 to NTFS in File Explorer
Step 1. Press Win+E keys to open Windows File Explorer.
Step 2. Right-click your external hard drive, and then choose "Format".
Step 3. Select the file system and set a new label for your USB drive. Wait for the formatting to finish.
When you copy files from Windows computer or Mac to your USB drive, SD card, pen drive, external hard drive, or similar, you may see the error the item can't be copied because it is too large for the volume's format because of FAT32 limitation.
It's easy to resolve the issue by formatting your hard drive to exFAT or NTFS file system. You can follow the step-by-step guides above to finish the job.
To address the too large for the volume's format issue on Windows 11/10, the best way is directly converting FAT32 to NTFS with free Qiling partition manager in simple clicks. No data deletion, no worries.