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You can do a manual quick scan any time you choose if your computer is exhibiting suspicious behaviour.Enabling JavaScript and cookies in your web browser
We recommend carrying out a full scan once a week.
Most security suites are configured to perform an automatic scan once a week, often offering the choice of a ‘quick’ or ‘full’ scan depending on your needs. Your security software gives real-time protection against threats as they emerge, but regular system scans are important, too. Most security software automatically checks for updates at least once a day, although it’s worth investigating whether your program is set up correctly. It’s vital to keep your computer’s antivirus protection up to date, otherwise newer threats may be able to slip past your defences.
How often should my antivirus software update and scan?
If you’re using any earlier version of Windows, such as Windows 7, it's time to upgrade as Microsoft has stopped providing security updates for it. If you don't want to pay for antivirus software, see the best free antivirus software available. We've found that Microsoft Windows 10 Security (formerly Windows Defender) offers a good, basic level of protection, but Best Buy antivirus packages go further. Windows 10 offers the most complete protection its updated version of Defender includes antivirus, firewall and anti-spyware capabilities. Recent versions of Windows have these tools built in.