Do you have the Background Intelligent Transfer Service (BITS) started?
you need this for automatic updates or express install to work;
1. Click Start, and then click Run.
2. Type services.msc and then click OK.
3. In the list of services, right-click the service name, and then click Properties.
4. In the Startup type list, select Automatic.
5. Verify that the service status is started.