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If at any point you are unsure of the process, McAfee has a support section on their website to help out.
Double-click the ‘McCertUpd.exe’ file to install the latest Update Manager. Double-click the zip file, then copy the file ‘McCertUpd.exe’ to your desktop. To install the latest certificate trusts, download the ‘McUpdFix.zip ‘ file from this location. Start the installer but do not click ‘Next’ until you have completed the next step. Make a note of the serial number as you may need it later. Select the McAfee software and the computer you wish to install the software upon. you can also sign up for a new account by clicking ‘Register Now,’ and filling out the details. Sign into your account, by providing your email and password. If the installer displays ‘Installer 1,’ then follow the additional steps below. If the installer displays ‘Installer 2,’ simply follow the on-screen prompts to install the software. For both systems, an installer will run you through all the steps needed.ĭownload the latest version of the McAfee software. The steps for downloading and installing the McAfee antivirus software is similar for both Windows and PC. You can quickly test your Internet connection by visiting this website. Check the computer you wish to download the antivirus software onto has a solid Internet connection. All the lights on your router should be glowing green, showing a working network. Check your Internet Connection Image Credit: Ĭheck that your router has a strong signal. As the original error was caused by a possible drop in Internet connection, make sure you have a constant network connection. Once the nonworking version of the software has been uninstalled, it is now time to install a fresh new copy. Type in the administration password if needed, click ‘OK’and then click ‘Finish.’. Locate the ‘McAfee Internet Security Uninstaller’ and double-click. In ‘Dock’ locate the ‘Applications’ folder. Then click ‘Remove’ to completely uninstall the software. Select ‘Remove all files’ from the McAfee Security Center. Find the ‘McAfee Security Center,’ right-click the icon and select ‘Uninstall/Change.’. Within the ‘Control Panel’ select, ‘Programs and Features.’. Select ‘Control Panel’ in the Start menu.