Hi, yes the problem is the UsoSvc, this service is essential for Windows updates to work, open regedit and navigate to :-
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsoSvc
In the right payne locate "start" and right click on it select modify in the value data box that opens change the 4 to 2, restart computer and try updates now. The default setting for this key is 2 which equates to automatic start 4 disables the service.