Learn how to turn on and turn off notifications on Start, on the lock screen, and in the upper-right corner.
Get answers to questions about the Messaging app like how to start chatting and how to sign out.
Learn how to use Skype to chat, and make free audio and video calls. You can also install Skype on the desktop to chat with Facebook friends.
Learn how to view which features an app has permission to use before you install it from the Windows Store.
messanger and calendar desktop app is not opening