If encountered problem uninstall Mcafee Anti-Virus follow the rest of my post.

The first procedure is to uninstall Mcafee  to Add/ Remove program for Windows XP/2000  and Program and Feature for Windows Vista. Click Start - Control Panel - Add/Remove Program or Program and Feature.

Here’s the next procedure: if  Mcafee Anti Virus not 100 % removed and you encounter this problem. Their’s no other McAfee installed in your Add/Remove program or Program and Feature or even to your Program Files, but when you try to   install other Anti Virus your PC asking to remove Mcafee before you can install other Anti Virus.

The only solution for that  is using either original copy of Mcafee CD installer or download the McAfee Removal Tool.

Once you try to install McAfee CD installer, put the "check" action to the McAfee left application ( the application left appeared when you try to install other anti virus). After you done installed , you can go to Add/Remove Program ( XP/2000) or Program and Features ( Vista) and remove the application.

If you want to use McAfee Removal Tool you can also Download Here!!!