Based on the available information, there is no supported way to recover the missing portion of a screen recording if it was never fully saved or uploaded.
For similar Microsoft recording scenarios (such as Teams or OneDrive-based recordings), the guidance is:
- Verify whether the full file exists anywhere in OneDrive:
- Sign in to the OneDrive website and use Search everything to look for the recording by name, file type, or date.
- Check the Recycle bin in OneDrive and restore the file if a larger/earlier version is present.
- If the recording was interrupted, failed to upload, or only partially saved, the missing portion typically cannot be recovered:
- For meeting recordings, if there is no complete file in OneDrive/SharePoint and no temporary copy available, the content is not recoverable.
- If a recording was never fully written to disk (for example, due to an app or system issue), there is no native Microsoft tool to reconstruct the missing part.
- If the file was deleted from local storage before syncing, recovery options are limited:
- Check the Windows Recycle Bin.
- If the file is not in any recycle bin and no longer in OneDrive, there is no native Microsoft recovery method; only third-party file recovery tools might help, and success is not guaranteed.
If the full 1+ hour recording does not appear as a complete file in OneDrive, in any recycle bin, or on local storage, the remaining portion cannot be restored using supported Microsoft tools.
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