Antivirus software is essential for safe internet browsing.

I never used any antivirus software before. When I realized I needed to use one, I would download a free 30-day trial of Dr.Web. On the 30th day, I would update all the databases, scan all the drives for viruses, and reinstall Windows. Then I used Dr.Web – I never quite understood Kaspersky's interface, but sometimes I had to work with it occasionally... Later, I had to use Kaspersky, and mostly just that. I figured out the interface; it's not that complicated. At home, I download a one-time Kaspersky version every two weeks and scan everything with it. In general, I recommend not spending money on a license at home, but simply downloading a one-time Kaspersky version from the website every week or two and scanning everything with it. I guess I'll vote for Kaspersky, although Dr.Web is just as good.