Your computer welcomes you

Code - 

Dim speaks, speech
speaks="Welcome to your PC, Username"
Set speech=CreateObject("sapi.spvoice")
speech.Speak speaks

Instructions -

1. Copy the above code in the notepad and save it as anything.vbs.
2. In line 2 replace Username with your own name.
3. Choose All Files in save as type option while saving.
4. Copy the file and navigate to C:\Documents and Settings\All Users\Start Menu\Programs\Startup (in Windows XP) and to C:\Users\ {User-Name}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup (in Windows 8, Windows 7 and Windows Vista) if C: is your System drive.App Data folder might be hidden so you will need to select show hidden folder in folder option to locate it.
5. Paste the file there.

Note -

For best results, it is recommended to change sound scheme to No Sounds.
You can change the sound scheme to No Sounds by following the steps given below:-

1. Go to Control Panel.
2. Then click on Switch to Classic View.
3. Then Click on Sounds and Audio Devices.
4. Then Click on the Sounds Tab.
5. Select No Sounds from the Sound Scheme option.
6. If you wish to save your Previous Sound Scheme, you can save it by clicking Yes in the popup menu.
7. Click on OK.

The next time you start your computer you will find a voice saying welcome to your PC.If you like it share it and keep visiting for more.