 Hello everybody! In this video, I'm going to show you how to recover data after you reinstalled or updated your macOS or after you have formatted the hard disk. In our channel and blog, you will find solutions to any problem, from installing an operating system or configuring it to fixing possible bugs and errors or optimizing mobile gadgets. Our specialists will answer any questions you ask in your comments under the videos or articles. The majority of Mac users claim that the most widespread case of data loss is when the operating system is updated or reinstalled, or when the hard disk is formatted. The need to reinstall the operating system may arise after a system error, when the computer works too slowly or when you need to erase all personal data. From this video, you will learn how to recover data after you reinstalled or updated your macOS or after you have formatted the hard disk. Also, we will show you how to reinstall macOS without losing any data at all. If you decided to reinstall the operating system and format the hard disk in the process, you should backup important data in advance to save yourself the trouble of trying to recover it somehow. This would be the best way to secure your data against possible loss. However, sometimes having a backup copy is not enough to recover lost or removed files, as there could always be some unpredictable things. During the reinstall, the operating system performs a quick wiping operation on the corresponding volume. As a result, it removes the file catalog but doesn't write anything to the hard disk, so that the original data doesn't get overwritten. This peculiarity lets you recover files after reinstalling the mac operating system, if you start recovery operations immediately. Remember, to stop using the hard disk where the important information used to be stored, otherwise it will be lost after overwriting. Without using additional software tools, data recovery after reinstalling the operating system is only possible if you have created a backup in advance. There are several ways to recover lost data. Step 1 Depending on your circumstances The first method to bring back the lost files after reinstalling the operating system is to restore a backup from Time Machine. If you have already created a backup on an external hard disk, you can handle the lost data issue easily. This way, you have almost 100% guaranteed chance for recovery. Here is what you should do. Step 1. Make sure that the external hard disk with the Time Machine backup is connected to your mac device. Step 2. Open Launchpad and click Other. Find the Time Machine icon and click on it. Step 3. Use up-and-down arrow keys to move the timeline and view backups containing the lost files. Step 4. Find the lost data that you need to bring back and click Restore. It starts the recovery process. After that, you may have to restart the computer, and then the files should appear on the disk and become available for you. Talking of file recovery using other third-party tools, this method requires using a computer with a Windows operating system. If you haven't created a backup in Time Machine before reinstalling macOS, you will need to download a special utility to help you recover your data. With virtually tons of data recovery tools offered on the Internet, we recommend using our product Hetman Partition Recovery. When it comes to recovering files after reinstalling an operating system, you can rest assured that Hetman Recovery will do the job perfectly. It will scan the hard disk or external storage device, find the lost data and help you recover it in a simple and efficient way. Here is what you do to get your data back. Step 1. Connect your disk to another computer with a Windows operating system, download and install Hetman Partition Recovery. As I said before, during the reinstalling process, the operating system performs a quick wiping operation on the corresponding volume. As a result, it removes the file catalog but doesn't write anything to the hard disk, so that the original data doesn't get over it. However, remember to stop using the hard disk where the important information used to be stored, otherwise it will be lost after overwriting. Step 2. In the Drive Manager, select the disk, right-click on it and choose Open. Try a fast scan first. It will take less time. If the fast scan can't find the deleted data, then go for Full Analysis. Step 3. The file recovery wizard will scan the selected volume immediately and display the scan results in the right side of the program's window. Step 4. When the scan is over, all you need to do is to select all deleted files you want to restore and then click the Recovery button. Specify where to save the data and click Recovery again. Also, our program can create a disk image and then conduct all recovery operations with this image, which increases your chances to restore the deleted information successfully, because multiple rounds of scanning may result in data overwriting. Hetman Partition Recovery is a powerful, safe and easy-to-use data recovery tool, and that's why we recommend using this specific product. Before trying it, you are welcome to watch a video where we compare various tools of the kind and our product shows one of the best results. You can use this program for data recovery in any of the following cases. To recover files lost after removing automatic partitions, system errors, virus attacks and other scenarios that involve loss of data. To recover data from internal and external hard disks, USB storage devices, SD memory cards, cameras and other devices used to store information. To recover lost photos, videos, music documents and other file types. All in all, it's always a good idea to back up the valuable information you store on the hard disk before reinstalling the operating system. In the end, it helps to never lose important data and avoid unnecessary trouble. Even though it may seem a bit difficult and is sure to take some time, you won't have to spend lots of time and effort later when you realize the data has to be recovered somehow. For example, copy your important files to a removable drive. To save your time, use the built-in Time Machine feature. When it's done, you can start the reinstallation process without worries. To reinstall the operating system, take these steps. Step 1. Restart the computer into the recovery mode. Restart the computer and at the same time press and hold the Command and R buttons to open the macOS utility window. Step 2. Erase the hard disk. Open the disk utility and click Continue. Select the disk and click Erase. Choose either macOS Extended or APFS and click Erase. Step 3. Restart the computer while holding down the Command and R buttons to access macOS utilities. Click Reinstall macOS and continue to start the process. Follow wizard directions to complete it. In the end, your computer gets a clean installation of the operating system. Step 4. To recover data, open Time Machine and restart the information from the backup file. Now, you can reinstall the operating system and have all your files in place while enjoying the benefits of fresh installation. I hope this video guide helped you fix the problem of recovering data lost after reinstalling or updating the operating system or after formatting the hard disk. If you don't have a backup, we recommend using Hetman Partition Recovery to scan the hard disk. Find and recover the lost information. And that is all for now. Hopefully, this video was useful. Remember to click the Like button and subscribe to our channel, push the bell button to receive notifications and never miss new videos. With comments to ask questions, thank you for watching and good luck.