Hidden and / or scrambled files

Richard Hyland 0 Reputation points
2026-09-02T20:32:16.06+00:00

How can I get my 365 back to the original settings so I can access them easily. I can access the One Drive files directly but can't if I need to attach them to an email?

Microsoft 365 and Office | OneDrive | For home | Windows
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  1. Thomas4-N 21,530 Reputation points Microsoft External Staff Moderator
    2026-09-04T13:11:16.5133333+00:00

    Hello Richard Hyland,

    Which email app are you using: Outlook.com, new Outlook, classic Outlook, or another app?

    When you select Attach File, are the OneDrive files missing, greyed out, or showing an error? Also, please confirm:

    • Whether the files appear under OneDrive in File Explorer
    • Whether OneDrive and the email app use the same Microsoft account
    • The exact error message, if any

    I would not reset Microsoft 365 yet. The next step depends on whether this is an account mismatch, OneDrive sync issue, or an attachment-picker problem.

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  2. Zoha Fatima 430 Reputation points
    2026-09-02T20:33:39.0333333+00:00

    Hi Richard,

    If you can open the files directly in OneDrive but cannot find them when attaching an email, the files are likely not fully available through File Explorer or Outlook’s attachment picker.

    First, make sure OneDrive is signed in and syncing. Then open File Explorer > OneDrive, right-click the folder containing your files and select “Always keep on this device.” This downloads the files locally so Outlook can access them normally.

    In Outlook, you can also select Attach File > OneDrive and choose the file directly, rather than browsing the local folders.

    I would try these steps before resetting Microsoft 365, since a full reset is unlikely to be necessary.

    Thank you, and feel free to respond back for more assistance.

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