If you need to see whether McAfee Antivirus is enabled and running you can use the EICARgen tool from Didier.
The commands are simple..
1.) Generate a test file called 'McAfeeTestFile.exe'
EICARgen.exe write McAfeeTestFile.exe
2.) Generate a pdf file called 'McAfeeTestFile.pdf'
EICARgen.exe pdf McAfeeTestFile.pdf
Immediately upon running this or dropping a file onto a McAfee protected host you should see the familiar popup
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