If you don't already have an anti virus on your work machine, you're in a extremely small minority. As a consultant with projects that go about a week, I've experienced the onboarding process of over a hundred orgs first hand. They almost all hand out a Windows laptop, and every single Windows laptop had an AV on it. It's considered negligent not to have some AV solution in the corporate world. And these days, almost all the fancy AVs live in the kernel.