Start with the OneDrive website, not the app.
- Sign in to OneDrive at https://www.onedrive.com using that live.com account.
- Use Search everything at the top.
- Search by more than file name: try dates, places, or terms like photo, jpg, png, or a month/year.
- If the phone photos had location data, searching by location may help.
- Check the Photos view and browse by date. OneDrive can help organize photos and show them by timeline.
- Check the Recycle bin on the left side of the OneDrive website. If the pictures are there, select them and choose Restore.
- If nothing appears, check whether the files are in Personal Vault. Files there do not appear in normal search results. In the recycle bin, select Show Personal Vault items to unlock and view them.
- Check whether the pictures were backed up to a different Microsoft account. If the phone or PC ever used another account, sign out and sign in again with that account.
- Search the local device or any old PC storage that may have synced with the phone:
- Use File Explorer or Finder to search for the files.
- Check the computer Recycle Bin or Trash.
Important limits called out in Microsoft guidance:
- Personal accounts inactive for two years may have been deleted.
- If files are not found in search or the OneDrive Recycle bin, they usually cannot be retrieved.
If this is a personal Microsoft account and the files still cannot be found, use Contact Microsoft Support from the OneDrive support flow. On mobile, support can also be contacted from the OneDrive app by shaking the device.