I set a timer for 5 minutes. Went to the kitchen. Ate a cold slice of pizza. Stared at the microwave clock. Came back. Reconnected the battery cable. Snapped the bottom panel on (screws optional for now—I was desperate).

I pressed and held the power button for a full 60 seconds. Not 15, not “until it turns off.” I counted. At second 45, the screen finally went black. I kept holding. At 60, I let go, half-expecting it to laugh at me.

I needed a hard reset. Not a soft reboot, not a prayer. I needed to drain every last angry electron from its circuits and force it back to life.

On many HP 15s, the battery is internal—a smooth belly with no easy latch. I flipped mine over. No sliding door, no release switch. So I grabbed a small Phillips-head screwdriver and removed the 10 tiny screws holding the bottom panel. The warranty sticker tore with a satisfying rip. Inside, a flat black rectangle: the battery’s connector to the motherboard. I gently pried it loose with a plastic spudger (a guitar pick works in a pinch). Now the laptop was truly dead—no hidden trickle power.

I yanked the power cord from the wall. No charger, no USB mouse, no external drive. The laptop was now a lonely island of failure.