anything free will be riddled with malware and adverts. I think you'll have to bite the bullet if you want the protection. I use norton and it updates itself, you can also use it on up to 5 devices for no extra.
Computeractive magazine recently tested lots of security suites and McAfee was very poor and not recommended. Kaspersky performed best and is available for under £20....I get it free with my Barclays account.
The latest edition of Computer Active magazine reckons that Microsoft Security Essentials only blocked 56% of potential threats and ranks it 10th out of the 10 they tested. I have seen similar reviews of it elsewhere. The best free anti-virus is generally reckoned to be Avast, and I've not had any problems whenever I've used it.
Me, and all of my family have used Avast for many years. As far as I know non of us have had any problems while using it. I certainly wouldn't pay £60.00 for an anti virus.
My granddaughter has just bought a new laptop for Uni with McAfee anti virus installed free for three months. I have told her to install Avast and delete McAfee.
2sp_ I have Norton Internet Security, and have had no problems,I brought Norton 360 this time because Currys had run out of Internet Security it only cost me £29-99 for three computers and it also tunes your computer up, I have had no problems.
Good Luck
The security software that came with your operating system (assuming it's Windows) is as good as it gets and is free. This is what I have been told by a friend who is experienced in the IT business. It gets on with it quietly in the background, doesn't pester you to scan and all you have to do is keep it updated as and when notified. Malwarebytes makes good backup (also doesn't pester you or clog your machine with cráp).
Answeprancer: If you are referring to Microsoft Security Essentials...then
your "experienced friend" is way out-of-date. Microsoft has stated that it gives only "baseline" protection and should not be relied on to give much protection.