How to uninstall McAfee Antivirus from your computer?

Follow the given steps to get rid of McAfee Antivirus from your PC:
1. Access McAfee's files in your program files folder in Explorer. Look for C:\program files\mcafee.com\agent\app.
2. Delete all files contained in the folder. If you can't find the McAfee application, enter "mcafee" in the Search feature on your Explorer toolbar.
3. Go to the "Add and Remove Programs" in the Control Panel. Highlight "McAfee Security Center" and click on "Remove."
4. Close down all running programs and restart your computer. The computer will reboot and run a systems check.
5. If you want to reinstall the McAfee Security Center, insert the CD and follow the instructions. If after that you're still encountering problems, run "services.msc" on the Run command. Set the properties on all McAfee services to "Disabled" and set the recovery to "None."
6. Reboot the computer and remove the program with "Add and Remove Programs" as described in Steps 3 and 4.

How to uninstall Norton Antivirus?

You can simply remove Norton products through the Add/Remove Control Panel.

1) Click on Start, go to Control Panel
2) Double-click on Add/Remove Programs
3) Find the Symantec or Norton product listed and click on it.
4) Click on Remove
5) You'll see a screen similar to the one below. Click the Remove All button to start the removal process.
6) Once the removal process completes, you'll be asked to restart the computer. Go ahead and reboot your system.
7) After rebooting Norton should be removed from your system.