If you use to watch Hollywood Sci  -Fi movies, you must saw a scene in which the computer welcomes the user by speaking his name in the computerized voice.This looks quite impressive ,but You can easily make your Windows PC to speak a welcome greeting note for you at windows start up.
This is very simple and easy to implement trick but when you start your computer in front of your friends or anybody, they will be wondered by listening your name.So If you want to impress your friends with your technical and programming skills,you must try this.This is very cool and interesting trick to impress someone .  This works for Windows XP,Windows 7 and Windows 8.
Here is how to do this:
  • First open the Notepad.Windows 8 users can open it by  typing notepad in start screen and then by clicking notepad.exe. Windows 7 users go toAll>programs>Accessories>Notepad.  
Windows 8 apps
  • Copy the following code and and paste it in the notepad.Replace theUsername with your name or any other name.Note that computer will speak all the text between “”.  

Dim speaks, speech

speaks="Welcome to your PC, Username"

Set speech=CreateObject("sapi.spvoice")

speech.Speak speaks
  • Now go to file in menu and select Save As.In Save as type select All Files.In the File Name write welcome.vbs and select Save.Save this file on your desktop.
  • Copy the welcome.vbs file and Navigate to C:UsersusernameAppDataRoamingMicrosoftWindowsStart MenuProgramsStartup and paste the file there.If you cannot see the AppData folder select View in menu bar and check the box in front of Hidden items.
  • Windows XP users navigate to C:Documents and SettingsAll UsersStart MenuProgramsStartup and paste the file.
  • Next time when you will start your PC ,it will greet you by speaking “Welcome to your PC, Username“  in its own computerized voice.
  • If the welcome message is conflicting with the Windows startup tune,you need to disable the Startup tune.Just go to control panel(view by:Large Icons),select sound and under the Sounds Tab uncheck the box saying  Play windows startup sound.Click Apply and then Ok.
This seems a very simple trick but In my personal opinion , you must give it a try and you will know how interesting it is.Whenever I start my PC in front of other guys and PC welcomes me ,they left wondering  how good PC I have.
NOTE: You can customize the above meaasge by changing the text “Welcome to your PC, Username“ .For example My message is as follow:
 “Welcome to your PC, Username  If you are not Username, shot down this PC immediately otherwise you may get into trouble.”   
 
How it Works:
This is a very simple trick.You write a simple VB script which is capable of speaking English text and you place it in startup programs.So whenever your computer start ups ,the script gets executed and you listen the message.
Please note that this script is completely harmless and in no way it is going to harm your system.I personally tested it before sharing it with you guys.Please share your experience with this ,by commenting below.