Hello,
From https://learn.microsoft.com/en-US/troubleshoot/windows-client/application-management/event-10016-logged-when-accessing-dcom, Microsoft says:
"These events can be safely ignored because they do not adversely affect functionality and are by design. This is the recommend action for these events."
If you still like to fix, refer this guide:
Hope this helps!
Note: Included link in this reply refers to blog post by a trusted Microsoft MVP.