Delete mcafee service host in task manager in Windows OS

Step 1: Press 'Alt+Ctrl+Delete' and this page will appear. Click 'task manager'  
Step 2: if 'McSvHost.exe' or 'mcafee service host' appear means you need to delete it.
   

Step 3: Go to this website: https://service.mcafee.com/webcenter/portal/cp/home/articleview;jsessionid=YlRiBdYlcY4P6pL0n9roAQXc8ljVzxEmP2R3B4ou9-osMflayVFt!1947438904!-1427622645?_adf.ctrl-state=8l460aoq6_4&_afrLoop=938803844164623#!%40%40%3F_afrLoop%3D938803844164623%26centerWidth%3D100%2525%26leftWidth%3D0%2525%26rightWidth%3D0%2525%26showFooter%3Dfalse%26showHeader%3Dfalse%26_adf.ctrl-state%3Dfo9qmitqo_4

Step 4: Proceed to the website stated 'Step 2: Download and run the McAfee Consumer Product Removal tool (MCPR)'. Download the MCPR tool. Double-click MCPR.exe. If you see a security warning: Click Yes, Continue, or Run (depending on your version of Windows): and just follow all the steps until No.6 and when it is finally done, it will request to be restarted. Just restart it and cleaning process already completed.