Remember -- students must have all their updates installed before coming onto campus. This includes all Windows updates plus all updates for your antivirus.
To make sure you're updated, leave your computer on over night. New updates will be downloaded. You will see an icon in the system tray (near the clock) that alerts you to this. Click on it to make sure you've installed the updates.
For a quicker way, go to http://windowsupdate.microsoft.com to download and install updates immediately.
You'll need to do the same thing for your antivirus software. There is usually an option to do an update, select it and install.
If you're not up-to-date when you come on campus, you'll have to do it then. Better to be ready than to have to take the extra time to get on the Internet.