Microsoft has released an update for the Xbox app on Windows 10 that blocks users from joining parties. The update, which was first spotted by Windows Central, is currently available to users in the United States. The Xbox app on Windows 10 allows users to watch live TV, access their games and apps, and more. However, Microsoft has now added a new feature that blocks users from joining parties. The update is currently available to users in the United States and it prevents them from joining any party that they are not already a part of. This new feature is likely designed to prevent people from gaming together online or joining public chat rooms where they could potentially cause problems. Microsoft has not yet released a statement about why this update was necessary or what it will do to improve the Xbox app on Windows 10. ..