Create a Useful Name for My Computer

Start/Run/Regedit
HKEY_CLASSES_ROOT\CLSID\ {20D04FE0-3AEA-1069-A2D8-08002B30309D}. Data Type: REG_EXPAND_SZ (Expanded String Value). Rename the value named "LocalizedString" to "LocalizedString.old". Create a new REG_EXPAND_SZ value named "LocalizedString", and set the value to "%USERNAME% on %COMPUTERNAME%". Exit the registry editor, click on your desktop and press F5 (for refresh). The "My Computer" icon should now be rename to "Username on Computername".