The default file system for a pen drive is typically FAT32.
This file system is widely compatible with various operating systems, including Windows, macOS, and Linux. It offers a simple and reliable way to store and access files on a pen drive.
While other file systems like NTFS and exFAT are also available, FAT32 remains the default choice due to its broad compatibility.
However, it's important to note that the default file system can vary depending on the manufacturer and specific model of the pen drive.
To check the current file system of your pen drive, you can use the Disk Management tool in Windows or the Disk Utility application in macOS.