avast! Home Edition is a complete anti-virus package for Windows 9x/Me, NT/2000/XP. It is FREE for registered home noncommercial users. It's certified by ICSA and obtained 100% mark from Virus Bulletin in June 2002 under Windows XP Pro.

Program Information Category: Tools and Utilities Type: Free Version: 4.7.827 Size: 10.7MB Works on: Windows Product page: here