Avast Free Antivirus is a free antivirus program for the Windows operating system. It can detect a large number of known viruses and track modifications made by various types of malware.
It instantly scans for security and performance issues and tells you how to fix them. It safeguards you in real time by scanning unknown files before they reach you.
Avast can scan directly from the command line, has anti-virus and anti-spyware, a boot-time scanner, and can scan files in real-time.
It safeguards you in real time by scanning unknown files before they reach you. So unwind: you’re running the most trusted antivirus available.