They were onenote's files, research notes. Had problems with sync and lost files.

How can I recover the files in the safest way? It happened today. I already stopped using the phone.

(asking for a friend)

  • I've just added the data-recovery tag to your question. You might be interested in checking its tag-wiki which will give you some useful links on the topic.
    – Izzy
    Commented Feb 26, 2018 at 22:58

1 Answer 1


I'd try photorec (testdisk package) in Linux. Or the Piraform file recovery program in Windows. Get it connected to a PC sooner rather than later as you don't want the area it was stored to be overwritten.

Was the Onenote not syncing with a Microsoft account?

  • It wasn't syncing (and it is part of the cause the files were lost, trying to sync...). I'll try windows alternative. Thank you.
    – Figurinha
    Commented Feb 27, 2018 at 3:28

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