Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
Data Recovery Guru for Mac App Review
Few things are as infuriating on the Mac as when you delete a file by accident and cannot retrieve it. The best solution may be to back up your computer regularly but this is not always an option and even with regular backups set up, it is still possible for a file to fall between the cracks, never to be seen again. The good news though is that there are apps that can be used in such situations to find your lost files and restore them and there is a particularly effective one out there worthy of your attention. Data Recovery Guru is available to download for $99. There is an ostensibly free version in the App Store but the catch with that one is that it charges you to actually retrieve the file so you would be better off paying for the full version outright.
Data Recovery Guru has quite an innovative way of doing its job as it takes advantage of Mac OS X’s file system. When you delete a file, whether it is intentional or not, it does not immediately disappear as it still exists within the free space and continues to do so for a limited period. It is only when the space is needed for something else and overwritten that the file is truly gone but Data Recovery Guru takes the liberty of reading this deleted data before it is replaced.
In addition to being a smart app, it is also very easy to use. All you have to do is designate a location for recovered files to go to and run a scan through the app. This scan will retrieve your deleted files, which you can then recover completely or discard. What may not be so easy is identifying the desired file as it will not have its original name. If you have deleted a lot of material recently and Data Recovery Guru digs it all up, you may have to dig through it a bit before finding the file you need. However this is at least an easy process as the app allows you to preview every file it turns up and since they are arranged by file type, it does not take too long to find what you are looking for.
When you do find the missing file, all you have to do is select it, click Recover and save it to a location of your choice. The only limitation here is the fact that it must be saved to a different volume then the one it was recovered from but that is a small price to pay and should not have any significant impact on the recovery.
It is hard to find a fault with Data Recovery Guru. Those who download the free version may be disappointed when they are hit with the recovery charge later on but if you just buy the full app straight away you will not encounter this problem and you certainly get your money’s worth. The app is quick and easy to use and as long as you do not wait too long before attempting to recover a file, it will not let you down.