By clearing sectors that are no longer in use, TRIM extends the lifespan of an SSD, but it also greatly reduces the efficacy of data recovery utilities. The issue is a command called TRIM, which zeroes out the parts of the drive where deleted files are stored. I opted to test both a SSD and HDD because of the challenges solid-state drives present for data recovery software. In the interest of testing real world usage, I selected six common file types (DOC, XLS, PDF, JPG, MP3, and MP4). To ensure uniform testing, I deleted the same files on both machines two weeks prior to testing. The MacBook Pro features a 120GB solid-state drive (SSD), whereas the Mac Mini uses a 500GB hard disk drive (HDD). Both systems run the same version of macOS Sierra. ![]() I tested Data Rescue alongside four other recovery utilities using two Macs: an early-2015 MacBook Pro and a late-2014 Mac Mini. That said, the next version (due later this year) will bring Mac, PC, and Linux offerings into alignment, according to a Prosoft technician. ![]() Windows users should note the Mac version boasts a more streamlined interface and superior cloning functionality.
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