How to Fix McAfee Security Center

1. Uninstall any other antivirus program that may be installed on your computer. Any other antivirus programs besides McAfee security center causes conflicts. To uninstall these programs, click the Windows 'Start' button and click the 'Control Panel.' Double-click 'Add or Remove Programs' to open the programs window. Scroll through and click the other installed antivirus program. Click 'Remove' to uninstall it from your computer.
2. Run a registry cleaner program to fix missing McAfee Security Center dll files and extensions. Most of the errors with McAfee occur in the registry, and repairing the registry will solve a great deal of problems. If you do not have a registry cleaner, download and install CCleaner free (see Resources).
3. Launch your program after it has installed and click the 'Registry' button on the left panel. Click 'Scan for issues.' CCleaner will search the registry for corrupt McAfee files. Click 'Fix selected issues' when the scan is complete and click 'Yes' to backup your registry.
4. Click 'Fix all Selected Issues' when the backup is complete and click 'OK' to repair the corrupt McAfee registry entries.
5. Download any available updates, patches and fixes if there are any from the McAfee website. To check for updates, navigate to the McAfee support page and click 'Downloads' to see if there are any available security updates.
6. Uninstall and reinstall your McAfee programs as a final resort if all other troubleshooting attempts fails. To uninstall your McAfee programs, click the Windows 'Start' button and click the 'Control Panel.'
7. Double-click 'Add or Remove Programs' to open the programs window. Scroll through and click the McAfee program you want to uninstall. Click 'Remove.' Perform the same procedure to uninstall other McAfee programs. Restart your computer when you are done.
8. Insert your McAfee installation disk into the computer CD-ROM drive to re-install the McAfee programs. If you purchased a download, navigate to the McAfee website to download and install your McAfee programs.