Hello castreyboy,
The profile you found was created when somebody with physical access to your computer had used Messenger. It might also be a remainder of the previous owner of the computer, in case you did not reinstall Windows, or might have been included in a full computer restore you performed. The least possibility is that the strange profile is part of your OEM PC manufacturer's preinstalled Windows CD.
Please right-click the Users/[PCUSER]/AppData/Local/Microsoft/Messenger/xyz@hotmail.com folder to see its filesystem creation date.
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