How to Uninstall McAfee With a Lock

Written by thomas mcnish
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How to Uninstall McAfee With a Lock
Remove McAfee from your computer and switch to another antivirus software. (Security and antivirus vector icons image by Aleksandr Lukin from

McAfee is an anti-virus software program that's designed to keep your computer safe from spyware, malware and trojans. It's a very capable program, and according to, " . . . once it's up and running [it's] competitive with Norton on speed, detection and removal of malicious software." But, if for some reason, you've wanted to remove your McAfee software, you might have had a little difficulty. Don't worry, there's a relatively simple solution to getting around the lock and error that appears when you attempt to uninstall.

Skill level:


  1. 1

    Click the "Start" button and navigate to "My Computer."

  2. 2

    Double-click the "Local Disk" icon to open it.

  3. 3

    Click on Program Files>McAfee>Agent>App.

  4. 4

    Scroll through the list of files and delete any files that ends in ".adf." You can either click and drag the file into the Recycle bin or right click the file and choose "delete" from the menu.

  5. 5

    Open Control Panel>Add/Remove programs. Find the McAfee SecurityCenter icon and click it once to highlight it. Click the "Change/Remove" button to uninstall it and enter the password when prompted. Click "Yes" when a pop-up dialog box asks you if you're sure.

  6. 6

    Repeat the previous step with all other McAfee related files, such as Spam Killer and Firewall.

  7. 7

    Restart your computer to finalize the installation.

Tips and warnings

  • If you've forgotten your McAfee password, you can retrieve it by visiting and clicking the "Log In" link. Click the "Forgot Your Password?" link and enter your e-mail address when prompted. The password should then be sent to your email address.

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