Cleaning MacBook cooling vents

the problem just started a few days ago after I purchased, installed and ran the McAfee Total Protection software.

No wonder. You don't need virus scanning software on a Mac. They use up lots of resources which makes your computer work hardd = generates heat = fans run to cool the computer. Uninstall McAfee. Also don't feel tempted to install any "cleaning" tools such as MacKeepr or CleanMyMac. Virus scanners and cleaners are almost always implicated in topics here where somebody complains about a slow computer.

Which exact model MacBook Pro? I don't know if Apple does this kind of thing but I have done it myself on a computer long out of warranty. It really just required a screwdriver and a can of compressed air.

the problem just started a few days ago after I purchased, installed and ran the McAfee Total Protection software.

No wonder. Remove it. Virus scanners use a lot of resources = working hard = generating heat = fans run. Virus scanners and cleaning tools (e.g. MacKeeper, CleanMyMac) are both often implicated in topics you see here complaining about a slow computer.

Apple, um, frowns upon us posting links to sites detailing do-it-yourself computer repair, but if you do a web search for something like MacBook Pro late 2013 fan cleaning you will probably find tips. Also depending upon when you actually bought the computer it may still be within the service life where Apple might actually have a look at it for this or some other problem and depending upon what fan cleaning involves you may void Apple ever doing anything with it. All that said, I bet once you remove the virus scanner you may decide it doesn't need cleaning unless you have a house full of cats.

Uninstall McAfee. It is not needed. It provides no benefit while using system resources causing computer slowdown and errors.