no validating saxparser implementation available - Sophos antivirus is not updating

Once again we've consulted the experts at to find the most effective virus protection, and we've listened to your comments regarding usability, too.

sophos antivirus is not updating-59

Obviously, though, Avast now has a lot more data to work with, having expanded its effective userbase (and, therefore, its threat detection network) to a whopping 400 million users.

The latest edition of Avast Free Antivirus adds an automatic gaming mode to mute popups and reduce system load when you're firing up a processor-hungry game, which is very handy indeed, and the interface has been given a clean new overhaul.

Less impressive is the slight negative effect Avast has on software launch times, and its slightly popup-heavy attitude.

Review and where to download: Avast Free Antivirus A recent entry on our list – but the perfect choice for a home full of PCs Marketing itself as "business-grade security", Sophos Home does a little more than most free antivirus software, and actually seems better suited to families.

Using the nuts and bolts real-world scanning engine of the paid-for suite, Kaspersky Free is fiendishly hard for viruses and trojan horses to break down.

And we love that it doesn't constantly pester you with nudges to upgrade to the full version.

Antivirus software is one of the first things you should install on a new PC, and top quality protection can be yours completely free.

We've updated our roundup of the best free security software so you know you're getting the very best protection for your data and your personal information.

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