Is there free antivirus software?

Related questions

1. Is Bitdefender free any good?
2. Why is a .ZIP file dangerous?
3. Are EXE files dangerous?
4. Will resetting PC remove virus?
5. Can you get hacked by answering a phone call?
6. How do I do a virus scan for downloads?
7. Does Google Chrome have built in antivirus?
8. Does .exe mean a virus?
9. Is Bitdefender real?
10. Does Bitdefender scan for malware?

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