Microsoft OneDrive could improve because it doesn't support backing up .PST files, which are Outlook data files, and email archives. This is a substantial setback when it comes to Microsoft OneDrive. There are times when there are some syncing issues. The resolution of the sync issues could be more user-friendly. When you keep on uploading on Microsoft OneDrive, there are a lot of duplicate files which keep adding. There should be some mechanism to identify the duplicate files, and then clean them up in an automated way. Microsoft OneDrive could check for the duplicate files which are exactly the same and give recommendations in terms of, which one to delete, to allow more free space. A type of cleanup function.