I came across a nice tip here on How to Make Windows Welcome you With an Audio Voice Message During Logon.
To use this trick, follow the instructions given below:-
Open Notepad and Copy, Paste below Code. Write any desired text.
Code:
Dim speaks, speech
speaks="John, Welcome to your Computer";
Set speech=CreateObject("sapi.spvoice")
speech.Speak speaks
Save it as a .vbs file and place it in the startup folder.
Source - # Make Windows Welcome You With Audio, Voice Messages with Narrator
EDIT By Admin:
Capt.Jack has clarified below that this script works!
Code:
Dim speaks, speech
speaks="John, Welcome to your Computer"
Set speech=CreateObject("sapi.spvoice")
speech.Speak speaks