If you see “Vulkan Run Time Libraries” in your Windows Apps & Features list, or a pop-up mentions a version like 1.3.391 (often misread as 10391), you have nothing to worry about. Here’s everything you need to know.
The string "10391" usually refers to the File Version or Product Version attribute of the library files (specifically vulkan-1.dll), rather than the main marketing SDK version. vulkan run time libraries 10391 new
Major.Minor.Patch. A common legacy version is 1.0.3.1.1.0.3.1 or be interpreted as a build number like 10391.
1.0.3.1 while the internal build ID or similar driver package identifiers might align with numbers like 10391 depending on the GPU vendor (NVIDIA/AMD) that bundled the library.| Question | Answer |
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| Malware? | Almost certainly no if the file is in C:\Windows\System32 or signed by Microsoft / GPU vendor. Scan it via VirusTotal if uncertain. |
| Can I delete it? | Not recommended. Many modern games (Doom Eternal, Red Dead Redemption 2, Cyberpunk 2077, emulators like Yuzu/RPCS3) require Vulkan. Deleting it will break them. |
| Why multiple copies? | Apps can bundle their own loader in the game folder. The system one in System32 is the primary. | What is “Vulkan Run Time Libraries 1
You did not manually seek this out. It arrived through one of these standard channels: The Version Scheme: Vulkan versions are typically denoted