The file system that the friend's computer using is NTFS.
What is file system?
- In a computer, the way files are named and organized logically both for storage and retrieval is known as a file system, also written as filesystem. Without the need for a file system, data would not be isolated into distinct files and be challenging to locate and recover.
- Windows file systems. Microsoft Windows uses two main file systems: NTFS, which is the default file format for most contemporary iterations of this OS, and FAT, which has been inherited from the original DOS and has the later extension exFAT.
- File storage, which is also known as file-level storage or file-based storage, is a hierarchical storage system used to organize and store data on a network-attached storage (NAS) device or on a computer hard drive.
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