External HDD Not Recognized: The Order of Checks to Avoid Damaging Data and What Not to Do

You connected your external HDD as usual, but the computer isn't responding. The light is on, but the drive doesn't ...

SD Card/USB Memory Not Recognized | What to Check Before Clicking "Do You Want to Format?"

You insert an SD card containing travel photos into your computer, and a message appears: "You need to format the disk before ...