Solved Why Does My Laptop Not Work Unless It Is Plugged Into The Wall Toshiba Satellite P55W

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My Toshiba P55W C5314 saids it is fully charged. The battery icon is indicated and does not show as any issues. But once I unplug it from the AC adapter it turns off immediately and will not power back on unless plugged in. It almost like my laptop is functioning like a desktop. Any advice?

It sounds like the battery is dead, you can find yourself battery health check software to confirm, but replacing the battery will most likely fix the issue.