Here is a situation that we all hope we do not ever have to face. You find that an important hard drive has been formatted and now the data is inaccessible. Perhaps the drive was formatted inadvertently, or it could have been done purposely before you realized that you needed files that were resident on the drive. In some cases, you may have formatted to change file systems, run into issues, and now have to recover files from a formatted hard drive.

No matter how you arrived at this point, the fact is that now to regain access to the data you need to recover data from a hard disk after formatting. Don’t panic, there are some options available to you that can restore your system to full operational order.
Let’s take a minute to understand what exactly formatting your hard drive does to your hard disk. When you format a hard drive, the operating system loses its ability to reference the data on the disk. Until the particular drive sectors are overwritten, there is still a chance to recover a formatted hard drive.
The files and data are still there, but just cannot be accessed by your operating system. The only thing that formatting accomplishes is to eliminate the pointers that exist that tell your operating system where the files are physically located. If you can recover those pointers then you can access your data again.
⚠️ If you find that you have inadvertently formatted a drive that you want to recover, you should immediately stop using that drive to avoid having the system overwrite sectors that may contain data that you are attempting to recover. Your best chance of recovering all of your files is to begin the restoration process as soon as possible.
Why Is Formatting Sometimes Necessary?
It’s easy to see formatting as a destructive operation that causes more harm than good, but that’s not really the case. In reality, formatting is essential for hard drives to be usable. An unformatted hard drive can’t be used to store files because modern operating systems follow certain file storage conventions and can communicate only with storage devices that have a corresponding file system.

The problem is that both modern hard drives and their file systems can be damaged, making formatting a necessary step for making the storage device usable again. Here are the most common reasons why users need to sometimes format their hard drives:
🕛 Performance issues: Storage devices, especially older spinning hard drives, may start showing signs of performance degradation over time. Data fragmentation is a common culprit, but it’s not the only one. In many situations, formatting is the simplest and most effective way to restore a slow hard drive to its original performance.
💾 File access issues: Modern file systems support complex file access management to ensure that only authorized users can access certain data. But where there’s complexity, there are potential issues. While virtually all file access issues can be solved without formatting, it’s often much quicker to move the affected files elsewhere, format the storage device, and move them back.
🗄️ File system change: Not all operating systems and devices support the same file systems, which is why you might need to format your storage device when switching from, let’s say, Windows to macOS or macOS to Linux.
🐛 Malware: Modern malware is far more sinister than computer viruses from the 90s. Ransomware can encrypt your entire hard drive without you even noticing, forcing you to format it from scratch to make it usable again.
🛑 Data corruption: Data can become corrupted for a number of different reasons. In extreme cases, data corruption may affect even the file system structure itself, requiring you to format the entire hard drive just so you can use it again.