Windows 11 Settings App Crashes when selecting Location, Camera, or Microphone

The Windows Settings app (SystemSettings.exe) is designed so that when you click on any of these three sections ("Location", "Camera", or "Microphone"), Windows uses the system service (camsvc) to perform a hardware poll of all media devices connected to your laptop.
Because your webcam is physically damaged (likely due to a short circuit in the cable or a burned-out controller):

1. The system poll hangs indefinitely while waiting for a response from the dead camera chip.
2. The Component Object Model architecture (combase.dll) hits a timeout and forcefully terminates this infinite loop with the exception code 87af000b (App Crash).
3. As a result, the entire Settings app crashes, even if you only intended to open the Microphone or Location menu.

Since the camera does not show up in the Device Manager under normal conditions, you cannot fix this by simply deleting the driver. You need to isolate the dead camera from the OS polling chain either physically or programmatically.
Here is how you can resolve this issue:
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## 1. Disable the Built-in Webcam in BIOS/UEFI (Most Reliable)
Disabling the camera at the motherboard level forces the CPU to completely ignore that specific port, stopping Windows from attempting to poll it.

1. Restart your laptop and repeatedly tap the BIOS key immediately upon powering it on (usually F2, Del, or F10, depending on your laptop manufacturer).
2. Look for a section named Advanced, Security, Configuration, or Integrated Devices.
3. Find an option called Integrated Camera, Webcam, or Front Camera.
4. Change its value to Disabled.
5. Press F10 to save your changes and exit. Boot into Windows and test the Microphone settings.

## 2. Force-Delete the Hidden "Ghost Device"
If your BIOS lacks this option, Windows might still hold onto old registry logs of the malfunctioning camera and keep trying to "wake it up."

1. Right-click the Start button and select Device Manager.
2. Click View in the top menu and check Show hidden devices.
3. Check the Cameras, Imaging devices, and Universal Serial Bus controllers sections.
4. Look for a semi-transparent (hidden) camera icon or a device with a yellow exclamation mark named “Unknown USB Device (Device Descriptor Request Failed)”.
5. Right-click it, select Uninstall device, check the box that says “Attempt to remove the driver for this device” if available, and click Uninstall.

## 3. Block Camera Inquiries via the Windows Registry
You can programmatically forbid the Capability Access Manager service from ever requesting access to the webcam.

1. Press Win + R, type regedit, and hit Enter.
2. Navigate to the following path:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\CapabilityAccessManager\ConsentStore\webcam
3. On the right side, find the string named Value (if it does not exist, right-click an empty space -> New -> String Value, and name it Value).
4. Double-click Value and change its data to Deny (instead of Allow). This blocks any internal system attempts to query the camera, preventing the combase.dll crash.

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## Alternative: Bypassing the Settings App for Microphone Adjustments
If you need to quickly configure your working microphone while the Settings app remains broken, you can bypass it using the classic Control Panel:

1. Press Win + R, type control, and press Enter.
2. Set the top-right View by option to Large icons.
3. Open Sound and switch to the Recording tab. Here, you can change your microphone levels, set default devices, and test your audio without touching the buggy UWP Settings panel