Enable the function that runs a scan every time you boot up your computer, and run a scan manually at least once a week. Also, update the software daily when you hear news of a virus outbreak. You might consider turning off the macro function in Word altogether. Be suspicious of attachments if you're not sure what kind of file they are embedded in or why it has been sent to you. Even if you know the sender, resist the temptation to open such attachments.
Viruses can infect a computer quietly and lie dormant for weeks or even months.
This accessory on Windows operating systems lets small programs like the Love Bug do their dirty work. On Windows 98, disabling the scripting host is straightforward. Go to the Start button and select Settings and then Control Panel. Choose the Windows Setup tab. Double click on Accessories, scroll down to Windows Scripting Host, and uncheck the box next to it.