Install Linux on your PC, and you'll never need McAfee again.
I did have SuSe Linux on my computer for years with great success. I had a minor hardware glitch and the local companies refused to do any work on non-Windows software machines. They could not run the diagnostics in Linux.
In the end, since I had a huge hard drive, with dual boot, I let them go ahead but told them not to touch the Linux partition. In spite of all of that, they somehow trashed the untouched Linux partition and data, and the dual boot would attempt to start Linux and then say that the boot record could not be found. I was never able to repair it nor was a Linux expert friend.
Surprisingly, OS/2 was the only system for which I never needed help, nor a virus checker. It crashed sometimes, but always recovered somehow and no one wrote viruses for it. Of course it was never a big favorite and so it missed all of the hackers.
Anyway. Yeah, I got into computers in the very early days at EK and personally with the Apple ][, then the Apple ///, the Lisa and the Mac. I've used just about all possible OSs, and then into the PC and several OSs there as well. I've used the Heath OS, Radio Shack OS, and a lot more including QNX and the Motorola OS. None is perfect. Kodak even built its own computer called the LLM (Lousy Little Machine

) which we used for process control. It used a 6809 OS.
Oh, I've also worked with the Taylor, the Westinghouse and the Siemens computers as well. I've grown out of that all and no longer have tools, but I can diagnose what an internal PC problem is most of the time even if I cannot solve it with resources at hand. In this case, you needed some specialized HW and SW tools.
Thanks again everyone.
PE