Have you checked SMART status? You can do this with Disk Warrior (you don't have to boot from the DW CD to do it; launch the copy of DW on your hard drive instead).


Jon

macOS 11.7.10, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365