In Windows, what file system format is commonly used for transferring files on USB flash drives?

The commonly used file system format for transferring files on USB flash drives is FAT32. This file system has been widely adopted due to its broad compatibility across different operating systems, including Windows, macOS, and Linux, making it ideal for USB drives that might be used with various devices.

FAT32 supports file sizes up to 4 GB and volume sizes up to 2 TB, which is sufficient for many users transferring smaller files. Its simplicity and cross-platform compatibility make it a favored choice for USB drives, especially for users who need to share data between devices.

While exFAT is also a viable option that supports larger files and volumes, FAT32 remains the traditional standard for USB drives and is often favored for its compatibility with almost all devices and systems. It does not require any special drivers and can easily be accessed by all operating systems, ensuring users have a seamless experience when transferring and accessing files.

In contexts where compatibility and ease of use are the main concerns, FAT32 stands out as the preferred choice for USB flash drives.