Free Antivirus Software for Windows
Free antivirus for Windows is a crowded search result full of download portals. Every product on this page comes from a vendor with a real security business, and every download link points at that vendor's own site.
Products covered on this page
Bitdefender Free
A permanently free Windows antivirus from a top-tier detection vendor.
free · Windows
Download safely
Type the vendor domain yourself. Skip sponsored search results and mirror sites, which routinely repackage free installers with adware. An antivirus obtained from a fake download page is worse than no antivirus.
Pick by tolerance for interruptions
Defender never speaks to you. Bitdefender Free is close behind. Avast, AVG and Avira are more feature-rich in their free tiers but prompt frequently to upgrade.
Frequently asked questions
- Where can I get an antivirus software free download?
- Directly from the vendor: bitdefender.com, avast.com, avg.com or avira.com. On Windows you do not need to download anything to have antivirus at all.
- Is antivirus freeware trustworthy?
- From a major vendor, yes. From an unknown brand advertising through pop-ups, no.