Use SUPERantispyware to get rid of the most straining Malware. It works a lot better than Ad-Aware & Spybot, but scanning with all 3 is recommended.

Using Avast! is recommended as a free option, but if you REALLY want to be protected, spend some money on getting ESET NOD32, or if you want nothing to worry about, the ESET Security Suite.

- Antivirus will deal with Viruses, Trojans & Worms
- Antispyware/Antimalware will deal with Adware, Spyware, Keyloggers, and other misc. Malware

Also, making sure you set your Internet Settings appropriate to your usage is your best protection.

Make sure all of your Internet-connected software is Up-to-date as well.

Good Luck.

~ Sensei