Start with the right checks.
A format prompt does not establish that a drive is empty. It means Windows cannot use the drive in its current state. The priority is deciding whether the information matters before making changes.
What to do next.
Cancel the format prompt. Note the drive’s label, make and the exact message.
Check whether you have another verified copy of the files. Do not assume that a shortcut or cloud icon is a backup.
Check the physical connection without opening the drive or repeatedly reconnecting a visibly damaged device.
Tell the technician whether the drive was used on another operating system, encrypted or disconnected during a transfer.
Check the result.
A useful result is a checked recovery copy of the actual files, not merely a drive that mounts after an erase. Open recovered documents from a separate location.
Stop and get help if…
The drive disconnects repeatedly, makes unusual sounds or holds the only copy of important information. Continued repair attempts can change the recovery situation. Specialist recovery may be needed and is not guaranteed by a remote session.