Also, users of iPhoto find that the iPhoto app itself along with the photos has gone. With the Big Sur update, some people lost a part (or worse, all) of their photos. Retrieve lost photos or iPhoto app without any third-party app

Tip: You can also use the timeline on the edge of the screen to see the files in your Time Machine backup as they were at that date and time and use the onscreen up and down arrows to jump to the last time the contents of the window changed. Time Machine will copy that file back to its original location on your hard disk. Find the one you need to recover and click Restore to restore the selected file, or Control-click the file for other options. Select a file and press Space Bar to preview the file. Then you can navigate to the file or folder you'd like to restore. You'll be taken to the Time Machine window. Choose Enter Time Machine rom the Time Machine menu. Select the Show Time Machine in menu bar checkbox. From the Apple menu, select System Preferences, and then choose the Time Machine icon.

Professional data recovery software will do the rest. In such a case, this method alone won’t be enough. If the last backup was days, weeks or even months ago, then there would still be lost data despite the restoring.If you have created Time Machine backup before macOS Big Sur upgrade or downgrade, you can restore lost or missing data from the backup.As a result, it’s possible to easily recover documents, apps, music, photos and other data missing after Mac update. Time Machine is a backup utility built-in to macOS, allowing you to back up your entire Mac. If you have complaints like “I updated my Mac and lost everything” or “Mac update deleted everything”, the best possible solution is to get things back from Time Machine backup. Restore lost files after Mac update from Time Machine backup Before upgrading to macOS Big Sur or Catalina, please be aware of possible data loss and try to minimize the possibility. Note: Before you get all your lost data back, it’s recommended not to put new data to your Mac in case that the lost files would be overwritten by new data.

What is back to my mac