Wait for the scan to complete. If it finds and repairs files, restart your PC and try launching your application again. Step 3: Install/Repair Visual C++ Redistributables
"There was a problem starting ext-ms-win-wlan-onexui-l1-1-0.dll. The specified module could not be found."
Many "ext-ms" and "api-ms" errors are caused by missing components in the Microsoft Visual C++ Redistributable packages. Application fails to open - Microsoft Q&A ext-ms-win-wlan-onexui-l1-1-0.dll Download
Since this is a system-level "ApiSet" file, the most reliable way to restore it is through official Windows updates. Open > Update & Security > Windows Update . Click Check for updates and install any available packages.
If the file is corrupted rather than missing, the built-in System File Checker can repair it. Wait for the scan to complete
If you've encountered a popup stating that ext-ms-win-wlan-onexui-l1-1-0.dll is missing, you are not alone. This specific file is an , a small "virtual" file that tells Windows how to route requests for certain wireless networking and 802.1X user interface functions. When this file is missing or corrupted, applications that rely on WiFi or network authentication may fail to launch, often resulting in error codes like 0xc000007b . Common Symptoms
How to Fix ext-ms-win-wlan-onexui-l1-1-0.dll Missing or Not Found Errors The specified module could not be found
This post provides a guide on understanding and fixing issues related to the ext-ms-win-wlan-onexui-l1-1-0.dll file.