This is the "low-hanging fruit" fix. Many ECU tools attempt to create temporary files or access hardware ports that Windows 10 and 11 protect by default.
Ensure the edc17.dll is located inside the DLLs subfolder of your WinOLS installation. error at initialization of bundled dll edc17dll exclusive
The software looking for a specific version of the DLL in a Windows registry path that doesn't exist or is pointing to the wrong folder. This is the "low-hanging fruit" fix