Windows Live Messenger "You have 1 Invitation" Bug

Windows Live Messenger seems to have an annoying bug, indicating "You have 1 Invitation" but in fact there is really none.

A Microsoft MVP on Windows Live Messenger has confirmed in a forum that this is a known Windows Messenger bug and will be resolved in a later release. This is not a security flaw and so does not warrant a high enough priority.

Instead of waiting for a new release, the below method can be attempted to remove the annoying invitation alert.

1. Close Windows Messenger (Make sure it is not running)
2. Go to C:\Users\AppData\Local\Microsoft\Windows Live Contacts. Note that it is required to have "hidden files and folders" shown to browse the above location.
3. Remove everything in the aforementioned location
4. Start Windows Messenger