Everyone has heard a bad story about <insert AV here>, Norton used to be the bad one, then Kaspersky with its supposed Russian links. Truth is they all have to be invasive to do their job, if an Anti Virus does not have some impact on your PC its not working correctly, they simply have to read a file as its opened to do their job, and its better to be careful than getting Malware. None of them are perfect, they cant ever be 100% safe and which one is the best all depends on what samples the comany has analysed and got signitures for, and when the last upgrade was released compared to the testing date. The built in Windows Defender is good, but its only AV/Anti Malware, pay more for a premium product and you get more bells and whiles like VPN, Child protection, rejection of suspisious websites, password safes and so on.
mcafee is malware. Avoid.
Although the free Avast, now with NON STOP pop ups trying to get you to upgrade is a major pain, bordering on spyware itself!
The guy in work uses Macfee only for home use, sorry to confuse you and thanks for the information about the "work" version as i wasn't aware it existed.
Mcafee for work is a different product. My work uses mcafee and it is managed so provides an effective solution. Mcafee for home users is a very poor product and fails some av tests completely. I have cleared thousands of infections from computers that had Mcafee. It just doesn't protect from certain kinds of infections. Thinking you are protected when you are not is worse than knowing you dont have protection. Most, if not all, of the free av products are better than the paid for mcafee