Do I actually need anti virus software like Mcafee?

For years I have renewed my annual anti virus without really thinking. It's that time of year again and I'm wondering if I actually need it. My understanding is that anti virus software is not really needed anymore. Furthermore it can actually cause problems. Not to mention that I have to pay for... show more For years I have renewed my annual anti virus without really thinking.
It's that time of year again and I'm wondering if I actually need it.

My understanding is that anti virus software is not really needed anymore. Furthermore it can actually cause problems. Not to mention that I have to pay for it.

Should I renew Mcafee or not bother?

Thanks in advance.
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