Before you spend hours troubleshooting, check if your hardware actually supports this feature level. Most apps that require 11.1 will run fine on 11.0 or 12.0.
Feature Level 11.1 specifically introduces enhancements such as: Direct3D 11.1 Features - Win32 apps - Microsoft Learn d3d feature level 11.1 download
Don’t fall for it. If a website offers a “feature level 11.1 installer,” close the tab. Before you spend hours troubleshooting, check if your
If you do not see in that list, your current graphics card cannot run applications that strictly require it. How to "Update" to Feature Level 11.1 If a website offers a “feature level 11
: If you are missing legacy components that some games require, you can use the DirectX End-User Runtime Web Installer from Microsoft. Windows 7 Support : For Windows 7 users, 11.1 features require the Platform Update for Windows 7 (KB2670838). Microsoft Learn Troubleshooting the "Feature Level 11.1 Required" Error If you see this error despite having a modern PC: Check Support , and go to the
You already have the API.