Error(s) Found: Code 80244019 when trying to run Windows Update in Windows Vista indicates a problem in connecting to Windows Update Server. As a initial check, check if you are having connectivity problems. Also, if there is a proxy server used in your Internet Explorer, try to disable the proxy and check if that helps. This may not work in some corporate environments. Please check with your network administrator in this case.
If all looks fine then this could be a problem in Windows Registry and you may have to make the following registry modifications: