What is the best option to recover deleted files on a Mac OS X? My wife accidentally deleted some files from her Mac OS and wants me to help her in recovering those files. I'm a Windows user and don't know how to retrieve them?

The short and simple answer is “Yes”. All problem above can be solve.

Initially, when you deleting a file, it will be stored in Trash, which is present on your Mac system at the right-hand end of the Dock.

The trash is only a place which shows you the files you deleted from the drive. This deleted file is just being shown on the trash and reminds you just deleted it. Here you can easily restore the deleted file at any time until you empty the trash bin. Once the Mac Trash Bin get emptied, it is impossible for you to find the emptied files again.

There are 2 ways recover files from trash mac for free by yourself:

1. The screenshot shows how to "undelete" a file. It will be moved back.

If you simply put files in the Trash you can restore them by opening the Trash (left-click on the Trash icon) and drag the files from the Trash to your Desktop or other desired location.

2.  "Time machine" is a built-in backup tool that works with your Mac and an external drive, As the problem you described, I read it.  The files deleted in Trash bin could be a different problem which Time machine can't solve.  You can read this article and learn more. I hope it will help.

If you emptied the trash, the deleted file is still being recovered because you delete a file, the file itself still remains on the drive, the thing you “deleted” is just the space of it. The computer operating system is just free up the space of this file so that the new file can be put on the drive.

So remember this, after file deletion is happened, don’t put any new files on the drive which the lost files were stored before ’cause this will lead to data overwritten situation. Once this happens, you will lose the chance for lost file rescue.

If you stop using the drive it's possible to recover deleted files that have not been overwritten by using recovery software such as uFlysoft.

www.uflysoft.com/data-recovery-mac/recover-deleted-files-fro

Nearly everyone has accidentally deleted a file before. Therefore, you don’t need to be panic.

First of all, check the Trash Can. Hitting “Delete” doesn’t actually delete files. It sends them to the trash, which you have to manually empty to get rid of them forever.

Even when you empty your trash, deleted files aren’t removed from your hard drive right away. You can use apps like Disk Drill, which can read the files directly off your hard drive. You could recover them in full if you do it quickly enough after deletion. When you open it for the first time, Disk Drill will ask you to select your disk and perform a scan. Select OS X if you want to scan your main disk. The scan may take a few minutes, but when it’s done, you’ll be presented with a list of recently deleted files. Then find your files and right click to recover them.

However, there’s a great chance that you fail to recover the deleted files due to so many possibilities: hardware failure, malware attack and more. So, the best way to recover files is to backup your files regularly.