It's easy and this manual method works like this: Click Launchpad icon in your Mac's Dock. Find the app you want to delete. Click and hold the app until it starts shaking. You will see the removal application and the file under the “This Mac” tab. Click on “Remove Sophos Home” application and Click ‘Continue’. You will be asked to provide the password of your Mac to uninstall the application. It will display the application is uninstalling. Under My Apps, select the app that you want to download. For example, McAfee LiveSafe, or McAfee Internet Security. Make sure that Mac is selected in the drop-down box on the right. Click Download under Protect all your devices. Click I've read and accept the McAfee License Agreement. Launchpad will only allow you to uninstall programs that you downloaded directly from the App Store on your Mac. If there is no floating 'X' above your program after you click and hold the app, you cannot uninstall the program through Launchpad.
$ sudo /Applications/GlobalProtect.app/Contents/Resources/uninstall_gp.sh