Method 1: Retrieve Data from an Existing Backup via File HistoryĪ lot of Windows 10 users don’t know, but the operating system has a dedicated backup/restore feature, which is known as File History. Therefore, to retrieve your lost data, you can either take the assistance of a prior backup or a recovery tool. When we format the hard disk, its data isn’t stored anywhere else (like the Recycle Bin). Ideally, there are different ways to unformat a disk drive on Windows 10. Part 1: How to Unformat a Hard Drive on Windows 10? Part 2: How to Unformat a Hard Drive on Mac?.Part 1: How to Unformat a Hard Drive on Windows 10?.