Microsoft Defender isn't bad, but it's not enough to fully protect your PC. You don't have to pay extra, though—just use one ...

Bitdefender Antivirus Free is a free antivirus software especially designed to protect your Windows PC. Quick to install and light on computer resources, it is good for gaming, image and video editing ...

Bitdefender Antivirus Free scans and cleans your system using only the resources that you, your software or your operating system are not using, thus achieving near-zero impact on your activities.