Programs that I immediately put on my computer after reformatting it.
Adaware

Removes adaware and other junk from your computer.


Windows Updates

Go here and download everything. You may have to restart your computer a few times, but keep going back until you have everything.


Other programs that are handy to have.
Google Toolbar

Google's toolbar, allows easy internet searching at all times. Also blocks pop-ups.


Gmail Notifier

A little program that sits in the system tray and notifies you whenever your gmail account recieves email. It also can change your automatic mailing program to gmail instead of outlook.


MSN Messenger

Used for instant messaging.


Open Office

If you don't have a copy of Microsoft Office this is a free program that's almost as good.


Java

Not needed for most things, but some programs do require this.