Hi ashleynd1234,
Yes, when you start it up for the first time it performs a very deep scan, a memory scan, and it keeps checking this, that it will find your computer as he has scanned it the first time. If I was you I will use three lines of defense against malware: from your ISP what they deliver virus scan, anti-spam etc, cost you pennies.
If you on broadband a firewall router is your second line of defense. Then as a third line this Anti-Virus solution, Anti Spyware (three Ad-Aware, Spybot S& D and Spyware Blaster, Mailwasher (latest free version for one user), Anti-Phishing and privacy software. If you have that and use a safer browser like Firefox latest update or Opera, go onto the internet and have fun there.
P.S. Welcome to the forum,
polonus