Reader Haris wrote with a drive problem: “My Samsung SSD stopped working suddenly earlier today. Couldn’t boot and couldn’t repair it in Disk Utility.” Haris had kept his 2012 MacBook Pro’s original ...

When I wrote a series of How-To guides showing how easy it was to swap old Mac hard disks for new solid state drives (SSDs), I focused on raw upgrades — slow mechanical drives for fast chip-based ones ...