New Delhi, Dec. 29 -- Most laptop failures don't come from age or bad luck. They come from heat, and more specifically, from how quietly we learn to ignore it. There's a moment almost everyone recognises. The fan gets louder, the palm rest feels warm, and the performance dips slightly, but nothing crashes, so you keep going. Maybe you're working from bed with the laptop resting on a blanket. Maybe it's on your lap during a long call. Maybe it's pushed right up against a wall on a cluttered desk. It feels comfortable. It feels harmless. That's usually where the trouble starts.

Modern laptops are powerful, tightly packed machines. Processors, graphics, batteries, and storage all live in very close quarters. Heat is inevitable, so manufactu...