Every time I try to log out and try to shut down Windows, I get the following message:
Dwwin.exe DLL Initialization failed on shut down. I have to close two error message boxes before I can shut down windows. Please advise as to how to correct. Thank you

If you could give us some further information then we will be able to resolve your issue better.
Which operating system ?
System specs ?
Have you changed anything recently ?
WHat have you tried to resolve this issue ?

Check the link in this Old thread for some ideas.

When I shut down the computer dwwin.exe failed to initialized please help

Not an answer