How can I remove mobkshell.dll from an old installation of mcafee?

I am trying to remove C:\Program Files (x86)\McAfee Online Backup\MOBKShell.dll from an old instance of McAfee. The reason I need help is because in order to install a new anti-virus I need to remove this yet I can never find out how, it's always giving me an error saying "Access is Denied."
Asked Jun 25, 2015

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