Hide the "unread mail message" when in logon

1.Go to "Start"->"Run"->Type "regedit"


2.Go to "[HKEY_CURRENT_USER\Software\Microsoft\Windows\
CurrentVersion\UnreadMail]"
->At the UnreadMail right click "New"->"DWORD value"


3.At the DWORD value Rename it as "[MessageExpiryDays]"


4.Double Click inside it->Change the Value Data to "0"