I am unable to install mcafee virus protection because it is stating that I have another virus protection
That's a good thing. Fate has prevented you from installing a terrible anti-virus app on your Mac. McAfee should be avoided entirely on the Mac. It stinks. How to restore mac home app.
You have to remove the ‘Protected Status’ from each file individually. This works for all sorts of files that any of the apps in the Microsoft Office suite can open. If you have a spreadsheet or a presentation that opens in protected view, this will disable it. How to remove a virus from Mac. Just as with any disease, to doctor a virus you need to remove the infected part of your software — as simple as that. 1.Remove malware from Mac manually: The Activity Monitor. If you know which app on your Mac is malicious, you’re half-way through the problem.
I had sophos and iboost on computer before and I think I removed sophos completely
iBoostUp is absolute junk that should never, ever be installed on your computer. If you have installed it, you will need to find out how to remove it from the developer. Do not just drag it to the trash, unless they tell you that this fully removes it.
Regarding Sophos, that must be uninstalled using the Sophos-provided uninstaller. (It will be in your Applications folder, and will be named either Sophos Remove or Remove Sophos.) If you simply dragged the Sophos app to the trash, you did not completely remove it. You will need to reinstall it and then use the uninstaller.
Sophos is the best of the 'intrusive' class of anti-virus programs. (These are apps that have components that run in the background all the time, and that significantly modify system behaviors.) Such apps tend to be trouble, and Sophos can certainly cause problems and is not necessarily advisable, but it's far better than the alternatives. Trying to remove this in favor of McAfee is like trying to replace a car's sunroof with Saran wrap in hopes of making it more secure.
For more information on how to properly protect yourself against malware, see my Mac Malware Guide.
How To Remove Protected Apps From Mac Safari
How To Remove Protected Apps From Mac
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