This error can occur if you do not have all the latest Windows Updates. To check which Microsoft updates you are missing, please click here:
http://update.microsoft.com/microsoftupdate/v6/default.aspx

Please install all of the latest updates available for your computer and when the updating process is complete, please restart your computer and then check for updates again. You may need to re-run the check and restart several times before all updates are installed.