If I click the box Windows checks for updates but never displays updates and eventually the message reappears and I can click the button again.WSUS is synchronizing correctly according to the logs but clients aren't pulling down updates.Windows Update Agent (WUA) automatically updates itself when it is connected to a Windows Server Update Services (WSUS) server or to Windows Update.You can also use a signed installation package that is available from Microsoft to manually update WUA.When necessary, to ensure that users have the latest WUA, prompt them to install KB949104 or the latest WUA.Follow these steps in your app to determine whether or not the running version of WUA is the most recent one (or at least a current one). PASS Background Intelligent Transfer Service is running.
When updates are available from the WSUS server, do the clients see the little yellow shield in the systray?
PASS Option is from Policy settings Checking Proxy Configuration Checking for winhttp local machine Proxy settings .
PASS Winhttp local machine access type Winhttp local machine Proxy.
You can call the IWindows Update Agent Info:: Get Info method to get current version info about WUA, but you can't determine if that version is the latest.
If you receive a WU_E_SELFUPDATE_REQUIRED error message when you use the WUA API to perform a scan, download, or install, this error tells you that the version of WUA is out of date.