WSUS Not working and reinstall of System Center fails.

Browsing the websites you will notice:
HTTP Error 404.4 - Not Found The resource you are looking for does not have a handler associated with it.

Viewing EVENT Logs you will notice:
The DSS Authentication Web Service is not working.
The SimpleAuth Web Service is not working.
The Client Web Service is not working.
The Server Synchronization Web Service is not working.
The Reporting Web Service is not working.

Fix: Uninstall add-on's to IIS7 example, URL Rewrite and/or Application Request Routing Also re-install .net 4.0 You will also have to remove the Policy and GPO groups created by System Center

Next issue: Virtualization Management Server Error Message: System.InvalidOperationException: Service MSSQL$MICROSOFT$VMM$ was not found on computer I had to remove all references in my host file to get this to install correctly...

My main disappointment is with System Centers uninstall and reinstall, it's dirty!!!