The naming convention is dense but descriptive:
Crucially, this is not a conventional DLL. It’s an API Set—a virtual module that redirects calls to the real implementation elsewhere. apimswincorewindowserrorreportingl111dll
Open Command Prompt as Administrator and run: The naming convention is dense but descriptive:
sfc /scannow
Then:
DISM /Online /Cleanup-Image /RestoreHealth
Reboot afterward.
For Windows 10/11, you can manually re-register the API set. In an admin PowerShell: Crucially, this is not a conventional DLL
regsvr32 /u api-ms-win-core-windowserrorreporting-l1-1-1.dll
regsvr32 api-ms-win-core-windowserrorreporting-l1-1-1.dll
(Note: This often fails if the redirector is missing entirely—which is fine, it means the system will recreate it.)