Windows Live Mail

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Professional, Service Pack 1, 64 bit
Processor: Intel(R) Core(TM) i5-4440 CPU @ 3.10GHz, Intel64 Family 6 Model 60 Stepping 3
Processor Count: 4
RAM: 12204 Mb
Graphics Card: Intel(R) HD Graphics 4600, -1984 Mb
Hard Drives: C: Total - 931641 MB, Free - 854130 MB;
Motherboard: Dell Inc., 088DT1
Antivirus: avast! Antivirus, Updated and Enabled

I am running Windows Live mail 2012. How do I change the name Windows Live Mail shows on outgoing mail?