But if you’re just reminiscing or researching retro software: Avast Free Antivirus 2015 was the clear winner for best free internet security suite of that year.

Here’s a short, informative piece tailored to that 2015-specific query:

If you’re searching for the best free internet security suite from 2015, one name consistently topped the charts: .

Security software from 2015 is now completely obsolete. It won’t protect against modern threats like ransomware, fileless malware, or current zero-day exploits. If you found this article looking for a 2015 version to install on an old PC, do not use it —instead, download the latest free edition (Avast One, Bitdefender Free, or Kaspersky Free) for proper protection.