If your camera isn't working and you've checked the physical shutter, you can also use the (pre-installed or free at the Microsoft Store) to troubleshoot and verify if the hardware is active.

In this context, free is not a technical state but an ideological one. The user is rebelling against the "Internet of Things" model where every peripheral is a subscription service. They want the button to be free in the same way a light switch is free: you flip it, the light turns on. No driver signature enforcement. No cloud dependency. Just a simple circuit.

Since "camera button free" could imply two different meanings, I have written a dual-purpose essay that covers both the literal repair/fix scenario (freeing a stuck button) and the metaphorical/economic scenario (using it without paying for software).