When installing and configuring WebDAV, WebDAV may not configure correctly
This means that clients cannot install using 'Client Push Installation' below is the fix
1. Open %windir%\system32\inetserv\config\applicationhost.config in notepad
2. Between the entries <add name=”optionsverbhandler…> and <add name=”staticfile…> add the following line
<add name="WebDAV" path="*" verb="PROPFIND,PROPPATCH,MKCOL,PUT,COPY,DELETE,MOVE,LOCK,UNLOCK" modules="WebDAVModule" resourceType="Unspecified" requireAccess="None" />
3. Close and save the file