There are utilities specifically for data recovery. If new data files have not yet been written over that space, the old data is still there and may be recoverable. The space the file occupied become unallocated, so that new data can be written over that space. Typically, when a file is erase, it is not really erased.
If you emptied the Trash, it is more difficult. If you did not empty the Trash, click on the Trash icon at the right side of the Dock and drag those files to a different location to recover deleted files on Mac. The longer the hard drive remains in use and data are written to it, the greater the risk your deleted files will be overwritten.Īlso visit The XLab FAQs and read the FAQ on Data Recovery. Look for them and demos at MacUpdate or CNET Downloads. Two free alternatives are Disk Drill and TestDisk. Each of the preceding come on bootable CDs to enable usage without risk of writing more data to the hard drive. If you stop using the drive it's possible to recover deleted files that have not been overwritten by using recovery software such as Data Rescue II, File Salvage or TechTool Pro. Also if you save a file over an existing file of the same name, then the old file is overwritten and cannot be recovered. Writing to the drive will then eventually overwrite the space once occupied by the deleted files in which case the files are lost permanently. The space occupied by the files has been returned to the system as available for storage, but the files are still on the drive. When files are deleted only the directory entries, not the files themselves, is modified.
Recovery is possible but you must not allow any additional writes to the hard drive - shut it down. If a program does an immediate delete rather than moving files to the Trash, then the files are gone. If you empty the Trash the files are gone. OS X also provides a short-cut to undo the last item moved to the Trash -press COMMAND-Z. 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.
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