Why vkCreateInstance returns VK_ERROR_INITIALIZATION_FAILED although VULKAN is supported?

My PC supports DirectX11 & Vulkan. I run my unity game with vulkan without problems.

• OS: Windows 10
• GPU: Nvidia GeForce GT750M

I need to check Vulkan support in a separate C++ project. It is necessary to know about possibility to run my game with vulkan command line arguments.

Here's the code:

bool checkVulkanSupport(VkResult* res) {
    // Initialize Vulkan instance
    VkInstance instance;
    VkInstanceCreateInfo createInfo{};
    createInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;

    // Add validation layers
    const char* validationLayers[] = { "VK_LAYER_KHRONOS_validation" };
    createInfo.enabledLayerCount = 1;
    createInfo.ppEnabledLayerNames = validationLayers;

    *res = vkCreateInstance(&createInfo, nullptr, &instance);// << VK_ERROR_INITIALIZATION_FAILED
    // Create a Vulkan instance
    if (*res != VK_SUCCESS)
        return false; // Vulkan instance creation failed

    uint32_t deviceCount = 0;
    vkEnumeratePhysicalDevices(instance, &deviceCount, nullptr);

    if (deviceCount == 0) {
        vkDestroyInstance(instance, nullptr);
        return false; // No physical devices found
    }

    std::vector<VkPhysicalDevice> devices(deviceCount);
    vkEnumeratePhysicalDevices(instance, &deviceCount, devices.data());

    bool supportsVulkan = false;
    for (const auto& device : devices) {
        VkPhysicalDeviceProperties deviceProperties;
        vkGetPhysicalDeviceProperties(device, &deviceProperties);

        // Check if the Vulkan version is at least 1.0.0
        if (deviceProperties.apiVersion >= VK_API_VERSION_1_0) {
            supportsVulkan = true; // Found a Vulkan-supporting device
            break; // No need to check further
        }
    }

    vkDestroyInstance(instance, nullptr); // Clean up Vulkan instance
    return supportsVulkan;
}

I don't know why, but vkCreateInstance returns VK_ERROR_INITIALIZATION_FAILED.

This part of code causes the problem:

// Initialize Vulkan instance
VkInstance instance;
VkInstanceCreateInfo createInfo{};
createInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
    
// Add validation layers
const char* validationLayers[] = { "VK_LAYER_KHRONOS_validation" };
createInfo.enabledLayerCount = 1;
createInfo.ppEnabledLayerNames = validationLayers;
    
*res = vkCreateInstance(&createInfo, nullptr, &instance);// << VK_ERROR_INITIALIZATION_FAILED

Why vkCreateInstance returns VK_ERROR_INITIALIZATION_FAILED?