Fix Photos and Videos Not Opening or Previewing in OneDrive
Question details
Users are unable to open, preview, or download photos and videos that have been uploaded to OneDrive.

- Product
- Microsoft OneDrive
- Device & OS
- not provided
- Scenario
- Accessing or previewing media files stored in OneDrive via the web or desktop app.
- Observed behavior
- Photos and videos fail to open or generate previews due to unsupported formats, invalid filename characters, storage limits, or incomplete uploads.
Before troubleshooting, ensure your device has a stable internet connection and verify that the initial upload of your media files has completely finished without interruption.
Verify File Formats and Rename Problematic Files
Check if your media format is natively supported by OneDrive and remove any special characters from the filename that might block the preview.
OneDrive supports previewing standard media formats like JPG, PNG, MP4, and MOV. If your files are in a rare or proprietary format, the preview engine may fail to load them.
Additionally, special characters in the filename can cause synchronization and preview errors across different operating systems.
Ensure your files are saved in universally supported formats. If you uploaded a raw image or proprietary video file, try converting it to JPG or MP4 first.
Right-click the problematic photo or video in your OneDrive folder or on the web interface and select 'Rename'.
Delete any invalid characters such as asterisks (*), question marks (?), quotes ("), slashes (/ \), or pipes (|) from the filename and press Enter.
Refresh your browser page or restart the OneDrive app, then double-click the file to test the preview again.

Check Sync Status and Available Storage
Incomplete uploads or exceeded storage quotas can prevent media files from processing properly on OneDrive's servers.
Test Media Files on OneDrive Web
Accessing files via a web browser helps determine if the issue is isolated to your local device's OneDrive app.
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Frequently Asked Questions
Which photo and video formats can OneDrive preview?
OneDrive supports previewing most standard media formats, including JPEG, PNG, GIF, MP4, MOV, and AVI. If your file is in a raw camera format or a proprietary video codec, you may need to download it to view it locally or convert it to a standard format first.
Why do my uploaded videos show a black screen in OneDrive?
This typically occurs if the video upload was interrupted, if the file is extremely large and still processing on the server, or if the video uses an unsupported codec. Try waiting a few minutes, downloading the file to play it locally, or re-uploading it on a stable network.
Does file size affect video previews in OneDrive?
Yes, exceptionally large video files may not preview immediately on OneDrive Web due to bandwidth limitations and server processing times. You might need to wait for OneDrive to finish processing the video, or you can download the original file for local playback.
How can I fix filename errors that block OneDrive previews?
Select the affected file, click the 'Rename' option, and delete any invalid characters such as slashes, asterisks, colons, or question marks. Keeping filenames simple and avoiding leading or trailing spaces can prevent sync and preview errors.




