Unity Fails to launch after installing 5.4.2f2 on windows 10

I have just installed Unity 5.4.2f2 and re-installed and removed and re-installed Unity and it still does not launch fully. When I launch Unity It asks for what project to load and then disappears. When I bring up the task manager it looks like there is a Unity app running in the background using 0% CPU and two Unity helper apps running doing nothing. It just sits there for hours.

I have spent all day trying to figure how to resolve this. Any help?

Still haven’t fixed it. I’ve tried everything I could find in the forums and nothing has worked. My Unity does not continue to run after I launch it. Is there someone I can call or talk to about this?

I’m having the exact same problem this morning after a Windows update over the weekend. However, mine never even asks to launch a project, I get nothing then the Unity app in background with 0% CPU. Will let you know if I figure it out.