| Problem | Solution | |---------|----------| | vulkan-1.dll not found | Reinstall GPU drivers, or install Vulkan Runtime from LunarG (only if game demands it). | | (e.g., 1.2.x vs 1.3.x) | Update GPU drivers. | | Game crashes on Vulkan | Switch to DirectX if game allows, or update drivers / repair Visual C++ runtimes. | | Multiple conflicting loaders | Uninstall old Vulkan SDKs (via Control Panel). Keep only GPU driver version. |
: By offering thinner drivers, it reduces the communication gap between software and hardware.
This article explores what Vulkan Run Time Libraries are, why they are essential for modern gaming and graphics, what the "10391" (often 1.0.39.1) designation means, and why you should absolutely keep them on your system. What are Vulkan Run Time Libraries?
If you recently updated your graphics card drivers—whether from NVIDIA, AMD, or Intel—you might have noticed a new addition to your installed programs list: (often referred to in earlier versions as 1.0.39.1 or simply VulkanRT).
One significant feature introduced in the update was the addition of the VK_KHR_get_physical_device_properties2 extension. Key Feature: Extendable Property Queries vulkan run time libraries 10391 new
Vulkan is the successor to OpenGL, designed to provide high-efficiency access to graphics processing units (GPUs). Unlike older APIs, Vulkan offers lower overhead and more direct control over GPU hardware. This results in better performance and reduced CPU usage, which is especially noticeable in demanding AAA gaming titles and professional rendering software. Why Version 1.0.39.1 is on Your PC
Smoother hardware communication means your device uses less energy, which is particularly beneficial for gaming laptops.
You did not download Vulkan manually because it bundles automatically with major graphics card drivers.
The Vulkan Run Time Libraries, also known as Vulkan Runtime, have been updated to version 1.0.39.1. This update brings several improvements, fixes, and new features to the Vulkan API, which is a high-performance, cross-platform graphics and compute API. | Problem | Solution | |---------|----------| | vulkan-1
Vulkan Run Time Libraries 1.0.39.1 is a 3D graphics and compute API (Application Programming Interface) developed by the Khronos Group. An API acts as a bridge that allows video games and heavy graphical applications to communicate directly with your computer’s hardware, specifically your Graphics Processing Unit (GPU).
For the vast majority of users, especially gamers and those who use 3D software, .
Microsoft’s proprietary API, dominant on Windows.
Vulkan is built for multi-threading, meaning it spreads the work across all your CPU cores rather than bottlenecking one. | | Multiple conflicting loaders | Uninstall old
If you delete this program, games that require the Vulkan API will fail to launch or will throw error messages stating that vulkan-1.dll is missing.
If you see a different publisher or location, run a Windows Defender scan.
The Vulkan Run Time Libraries 1.0.39.1 update includes several changes, including:
A: The VulkanRT libraries themselves do not run as a background process. If you see high resource usage associated with Vulkan, it is from a game or application currently using the Vulkan API. The libraries are just the tool the game uses to render its graphics.
