Best antivirus programs (all time)

Avast Free Antivirus is an antivirus software and a part of Avast security software products are developed for Microsoft Windows, Mac OS X, Android and Linux users by AVAST Software s.r.o., a Czech private limited company. This pr...

Windows Defender is a software product to detect and remove malware. Initially released as an antispyware program, it was first released as a free download for Windows XP, shipped with Windows Vista by default, and currently ships...