“ For some reasons, I need to copy some files from my laptop to USB flash drive. While copying those files to the USB flash drive, the system prompts me that the file is too large for the target file system. But the capacity of my USB drive is 256 GB and the size of the files is only 182 GB. Have you ever encounter the problem that the file is too large for destination USB? If have, what did you do to handle this issue? Is there any suggestion? “
Difference between FAT, FAT32, exFAT and NTFS
If you want to solve the problem of file is too large for destination USB, you should figure out the difference between FAT, FAT32, exFAT and NTFS file system at first. File system is the way and structure that an operating system used to identify store files on a device or partition; That is, a way of organizing files on a storage device. It is also refer to the disk or partition that stores files, or the type of file system. The most commonly seen file systems in Windows are FAT, FAT32, exFAT and NTFS. And the difference between them is below:
FAT, also known as FAT16, is a simple file system. It is used for all drives under 512MB, such as flash memory cards and floppy disks. For FAT, the maximum file size of a single file it supports is 2GB.
FAT32 is a kind of file system suitable for small capacity hard disk. It designed to overcome the 2GB partition limit with the FAT system. The maximum file size of a single file it supports is 4GB.
exFAT, a file system rolled out to fill the gap of FAT32 and is more suitable for flash memory. exFAT can break the single file limit of 4GB, which is about the size of a single file in NTFS.
NTFS is the most widely used file system in PC currently. The maximum NTFS volume size reach up to 16TB, and the NTFS maximum theoretical limit in the size of individual files is 16EB. It is commonly used for large capacity storage drives.
If you save files larger than 4GB to FAT32 USB, you will get the notice of “file is too large for destination USB”. In this case, the best way to solve this problem of file too large for USB is to convert the USB file system. So that you can copy large files to USB simply and effectively.
How to copy large file to USB?
If the file system of your USB is FAT32, and the size of a single file in the file you need to copy is larger than 4GB. You can convert the file system of your USB from FAT32 to exFAT/NTFS. To convert file system between FAT32 and NTFS, there are two common methods. One is convert FAT32 to NTFS by Windows Disk Management, the other is convert FAT32 to NTFS or format USB drive to exFAT by third party software. But convert file system by Windows Disk Management will clear all data, you need to back up the files before. It can be a waste of time. So, the most convenient way to convert file system between FAT32 and NTFS without losing data is using a third party software. Here I highly recommend free AOMEI Partition Assistant – An useful partition software which provides you many powerful functions. You can use it to change external hard drive, internal hard drive, USB flash drive, SD Card file system between FAT32 and NTFS without data loss. After that, the problem of how to copy large file to USB will be solved. The specific steps of convert FAT32 to NTFS are as follows:
Step 1. Download, install and run AOMEI Partition Assistant, right click the partition you want to convert (here is your USB) and navigate to “Advanced”>”Covert to NTFS”.
Step 2. In the pop-up window, the selected partition will be converted to NTFS. Then click “OK” to continue.
Step 3. In the next window, you can preview the file system of your USB. Then, confirm the pending operation and click “Apply”>”Proceed” to perform it.
After these simple steps, you can easily and effectively convert the file system of your USB. And then, you can copy large files to USB. Free AOMEI Partition Assistant is such a powerful file system convert tool. Besides, convert to NTFS, it also has many other powerful features like resize/move/create/delete/format partition, migrate OS to SSD, convert data disk between MBR and GPT partition styles and so on. If you need to convert system disk between MBR and GPT partition styles, you can upgrade it to AOMEI Partition Assistant Pro.