It modifies deduped files, and these modifications are not recognized by the core file system, so it was throwing errors.

I have an external (USB) hard drive that I was using for backups on my home server (running Windows Home Server). I had to reinstall the server OS and now am receiving a "the file cannot be ...

If you see Error 0x80070052, The directory or file cannot be created when copying files to an external drive in Wndows 11/10, use these working solutions.