@menelion Yes, you should not work on the data directly on that disk, but make a copy first on another storage device, at the bit level.If these are important documents I'd recommend to ask a professional.I would recommend to look at photorec and their windows tool, if you're not familiar with the Linux desktop.They have a guide for who to recover fileshttps://photorec.net/#getting-startedMost importantly: don't panicDon't stress about the process, take your time.Good luck