

Read our full Avast Free Antivirus review (opens in new tab) for more information. Kaspersky Internet Security: Heavy-hitting antivirus with a unique approach.

It also boasts a near-unrivalled false positive rate, beaten only by the paid Bitdefender, ESET and Kaspersky software. Its threat detection has always been up to scratch, as it is with this year's version. Avast has always been a reliable bet when pursuing a free antivirus application.
