Hello everyone I am Madison smith, I had faced this kind of error on my device also. To resolve these issues I read many blogs and articles on this topic. Now I can fix this kind of issue but can't post the full solution to Fix Windows Steam_api dll Missing Error. If you are undergoing this kind of problems then you can communicate Windows support freely to get cooperation. A certified technician will help you out. I am sharing a link of one of those blogs, just read the blog and learn the procedure to determine this issue.