IDG Answers is a community of experts who are passionate about technology. Ask a question or answer one below.
Hey, I think this answer maybe a little bit late for you, right? But there are still many users will meet the same question like yours. So I would like to tell users is that once your meet this situation. The first thing you need to do is going to stop using the Mac which the files were lost from. Then turn to the next steps.
Maybe you will say that you emptied the Mac trash, is it still possible to get them back? Yes, you still have the chance to get them back though it seems that they are gone, but not forever.
Actually, after deleting files, the files seem to be lost, but in fact, the operating system only deletes the catalog and frees up the space of these files so that there is enough space for you to store new files. At this moment, you still have chance to get your files back.
But if you put any new files into the Mac, the new files will occupy the space of the "deleted files", this is the so-called data overwritten situation. Once this happens, you may lose the chance to get the files back.
For brevity, I only write some important points you may need to know before data recovery. For more details you can check this post: http://bit.ly/1u49afm
To make you calm down, the first thing I want to tell you is that your lost data can be recovered. But this situation you need to pay attention: After data loss happened, don't do anything on your Mac (Little Tips: It is similar to your storage device, any of them. Once you find data loss situation, don't do anything on it.) until you find a suitable method to get your data back.
If you keep operating your Mac, you will have no idea what you've done that does harm to your "deleted data" on your Mac. Yes, here I say the "deleted data" on your Mac. Actually the data is not really deleted but only the space of it has been freed up by the Mac operating system so that the new data can take place of it. This is the reasons I ask you don't do anything on your Mac 'cause you don't know which process will write new data into your Mac hard drive that your "deleted data" is deleted from. Here I bring you some tips you may need after you met data loss problem:
If you’ve lost a file, time is of the essence. As new files saved to Mac hard drive or storage devices, the original files gets overwritten. So do not use the drive or disk which your deleted files are stored before at all, until you have completed the scanning and recovery process.
The system crashed or the files loss situation happens occasionally, so remember build a backup for the files periodically is strongly needed.
If you meet the file loss situation again, stop using the Mac or storage device right now, use another computer to process the files recovery.
If your hard disk has enough space for storing the files, then there is no need to empty the Trash Bin quite often to avoid the wrongly deletion which makes the unnecessary trouble happens.
Try to call professional expert or use the free third-party software like Recuva orPuran, etc.