If it doesn't fix the problem, continue onto the next solution.
MCAFEE INTERNET SECURITY UPDATE FAILED INSTALL
After trying the first solution, check whether you’re able to install McAfee. If it doesnt fix the problem, continue onto the next solution. If you’re unable to install McAfee Internet Security Suite - Special edition from AOL, below are the solutions to resolve the issue.
If you have Family Protection installed, follow steps a and b below.When prompted, type the Captcha information exactly as seen (it is case-sensitive) and then click Next. (This step minimizes accidental executions of MCPR.).At the End User License Agreement (EULA) dialog box, click Next to accept the agreement.
At the McAfee Software Removal screen, click Next.If you see a User Account Control dialog box, click Yes.Browse to the folder where you saved the file and double-click MCPR.exe.NOTE:Because the MCPR tool is updated periodically, always download a new copy before each use to ensure that it can recognize and fully remove newer McAfee products. Download the MCPR tool from and save it to a temporary folder on your computer.