Cause: The file system format of the USB flash drive defaults to "FAT32", so files exceeding 4G cannot be copied. Solution: Open the cmd command window, enter "convert USB drive letter:/fs:ntfs" and press Enter to confirm, and format the file system to "NTFS".
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
U disk, as a portable mobile storage tool, has played an important role in our lives, but we often encounter that when copying some files to the U disk, the U disk space is obviously missing. There is also a large file, but it prompts that the file is too large and cannot be copied. What's happening here? How to deal with it? Let me introduce it to you below.
First of all, popularize some knowledge. U disks generally have file systems, mainly in three forms: NTFS, FAT16, and FAT32. The three forms correspond to different sizes of single files, as follows:
NTFS: Maximum file 2TB
FAT16: Maximum file 2GB
- ##FAT32: Maximum file 4GB
Generally, the default U disk is FAT32. FAT32 is a type of hard disk partition format for Windows systems (common ones include FAT16, NTFS, exFAT, etc.). It uses a 32-bit file allocation table. Although Based on FAT416, its disk management capabilities are greatly enhanced, but it has a feature that the maximum single file size supported is 4GB.
So when we copy a single file that exceeds 4G, the system will prompt that the file is too large and cannot be executed. It does not mean that the capacity of your USB flash drive is not enough.
Solution:.
1. First, click the computer icon on the desktop, open the computer, and you can see the drive letters of each partition and the drive letter of the inserted mobile storage. Here you can see that the drive letter of the U disk inserted by the author is G. drive, right-click the G drive and select Properties.
2. In the opened properties window, you can see that the author’s U disk still has 14G of space, but the file system is FAT32, so when a single file is larger than 4G Sometimes you will be prompted that the file is too large and cannot be copied to the USB flash drive.
3. Next, solve the problem and convert the file system: change the "FAT32" format to "NTFS"
Click the lower left corner of the computer, and then Enter the three letters 'cmd' in the input box as shown in the picture, and click Enter, which is the enter key on the keyboard.
#4. In the pop-up dialog box, enter 'convert g:/fs:ntfs' and press Enter to confirm . (Here g:/ represents the drive letter of the U disk. Enter the drive letter correctly according to the actual drive letter displayed on the U disk in the computer)
5. After pressing Enter, we will You can see some information about the current U disk, and it also prompts that the file system is being converted, as shown in the last line of the picture below.
#6. Wait for a while, do not operate, just wait. When we see the prompt that the conversion is completed, as shown in the last line of the figure below. At this point, we are done. We can copy files with confidence, because NTFS: the maximum file is 2TB. As long as the USB disk is large enough, a single file should generally be copied.
7. In order to verify whether the file format has been changed, we repeat steps 1 and 2 to take a look. You can see that the file format has changed from the previous FAT32 to NTFS, feel free to copy the files.
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