Solved Make my PC name not discoverable via bluetooth

#include "bluetoothapis.h"

int main()
{
    // Returns TRUE if at least one Bluetooth radio is discoverable.
    // Returns FALSE if no Bluetooth radios are discoverable
    const BOOL discoverable = BluetoothIsDiscoverable(NULL);

    if (discoverable == FALSE)
    {
        MessageBoxW(NULL, L"No Bluetooth device is discoverable", L"Warning", MB_ICONWARNING);
        return EXIT_FAILURE;
    }
    else
    {
        // MSDN: https://learn.microsoft.com/en-us/windows/win32/api/bluetoothapis/nf-bluetoothapis-bluetoothenablediscovery
        // Returns TRUE if the discovery state was successfully changed.
        // If hRadio is NULL, a return value of TRUE indicates that at least one local radio state was successfully changed.
        // Returns FALSE if discovery state was not changed; if hRadio was NULL, no radio accepted the state change.
        const BOOL status = BluetoothEnableDiscovery(NULL, FALSE);

        if (status == FALSE)
        {
            MessageBoxW(NULL, L"No bluetooth device accepted the state change", L"Error", MB_ICONERROR);
            return EXIT_FAILURE;
        }
        else
        {
            MessageBoxW(NULL, L"At least one bluetooth device state was successfully changed", L"Info", MB_ICONINFORMATION);

            // Must temporary pause for testing purposes because otherwise change is reverted when the program exits
            system("pause");
         
            return 0;
        }
    }
}

https://answers.microsoft.com/en-us/windows/forum/all/disabling-bluetooth-discoverability-in-win10-pro/c821ac52-9820-4702-a765-e6b235261b62