Yes. Deleting files in Windows normally just updates the card’s filesystem, but if that write is interrupted, the filesystem can be corrupted and the card may become unreadable in both the computer and camera. Common causes include unplugging the card/reader without using “Safely Remove,” power loss during a write, a faulty card reader, malware, or card/media failure.

Important: don’t format the card yet, and don’t keep writing to it.

Try this:

1. Stop using the card immediately.
2. Reinsert it via a reliable card reader and see whether recovery software can read it.
3. Use photo/card recovery software to scan the card and copy recovered files to your computer, not back onto the card.
4. After recovery, reformat the card in the camera before using it again.

For prevention, always use the OS eject/safely remove option before unplugging a card reader, and avoid deleting large batches on the computer if you’re worried about filesystem issues. If corruption happens repeatedly, suspect the card reader or the card itself.