Hi,
Have you ever encrypted these files using EFS?
I think you will need to use three-party software to try to recover lost files.
Please check if the link below can help:
How to Recover Lost Files and Folders
https://www.easeus.com/datarecoverywizard/recover-lost-files.htm
Please Note: Since the website is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.
Best Regards,
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