Grok says that:
1. Unformatted Floppy Disk: When a floppy disk is unformatted, the disk management tool will usually indicate that the disk is present but not formatted. It may show the disk as having no file system and prompt the user to format it before use. The disk is recognized by the system, but it lacks a file system structure.
2. Inaccessible Floppy Disk: An inaccessible floppy disk may be due to various reasons, such as physical damage, corruption, or hardware issues. In this case, the disk management tool might show the disk as "unreadable," "not initialized," or it may not show the disk at all. The system may not be able to read the disk's structure, indicating that it cannot access the data on it.
And also:
When a floppy drive is connected, via USB or legacy hardware, in Windows (including 10 and 11), and a floppy disk is inserted; the OS assigns it a drive letter and mounts it as a volume. Unlike hard drives, floppy disks are single-volume media without partitions, but they are still treated as volumes with a file system, such as FAT.
In Disk Management, the interface includes two main views:
1. Disk List (bottom graphical view): Shows physical disks (e.g., Disk 0, Disk 1) and their volumes.
2. Volume List (top view): Lists all mounted volumes, including their drive letters, file systems, capacities, and free space.
When a floppy disk is inserted, it is recognized as a removable volume. In the Disk Management volume list, you would see an entry for drive A: if a disk is present and readable.
The presence of data on a floppy disk can be inferred from the free space value:
1. If Free Space Equals Capacity: The disk is formatted but empty, meaning no user data is present (though minimal file system overhead might exist, it’s negligible for FAT on floppies).
OR,
2. If Free Space Is Less Than Capacity: Space is occupied by files, indicating that data is present.
For example a formatted 1.44 MB floppy disk might show 1.44 MB of free space, indicating no data. However, if files are stored on it, the free space might drop to, say, 1.00 MB, suggesting 0.44 MB of data is on the floppy disk.
That's how you tell if data is on the floppy disk, by looking if the free space equals the capacity or not using Disk Management in Windows. Windows Disk Management can tell if a floppy drive has data on it by displaying the free space of the mounted floppy disk volume.
Note: 1.44MB floppy disk came out in 1986 by IBM.