Known issue: Error 80244021 on Windows Vista

Update: The issue has been fixed. If you’re getting error 80244021, please note that this post is outdated. Using Legacy Update on Vista or Server 2008 and getting error 80244021? Don’t worry, it’s not just you. We’re looking into what we can do to fix it. I’ll be posting updates as we learn more about the issue here: 80244021 on Windows Vista