A Microsoft file hosting and synchronization service.
Hi, thanks again for confirming those details, that really helps clarify the situation.
Since your OneDrive account is active, used daily, and well within storage limits, and you’ve already checked the Recycle Bin, restore feature, and searched by file types, this rules out the usual causes like inactivity or quota issues.
What you’re experiencing points to a deeper issue that isn’t visible through the standard recovery tools.
The next best step is to escalate this directly to Microsoft Support and request what’s called a One-Time Data Restoration (OTDR). This is a special recovery process handled by their engineering team, and it’s not something regular support agents initiate unless specifically asked. You can start that process here: https://support.microsoft.com/en-us/contactus. Once you're there, sign in with your Microsoft account, select OneDrive as the product, and choose Technical Support or Files Missing as the issue. In your message, mention that your files disappeared without any deletion or user action, and that you’ve already tried all available recovery options. You can also include folder names or approximate dates when the files were last seen, that helps them locate the missing data more effectively.
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Thank you.