In order to download McAfee antivirus, you need to follow the provided steps:

Open your PC and launch a preferred internet browser.
A web-link will be attached to your product package, for example, www.mcafee.com/activate. Visit the web-link.
Choose the right country along with the preferred language.
The region picked up by the registration page may be incorrect, so you should check to make sure that the picked region is correct before going on any further.
Provide the following:
The McAfee activation key.
Your registered email address.
Click on the Submit button.
Ensure that the presented email address is correct. If not then you need to follow the provided steps to correct it.
You have to click on the Edit icon to go back to the previous web page.
Now you will have to provide your correct email address.
Click on the Verify icon after checking the email address.
The subscription will now be successfully activated.
Pursue the presented instructions to easily create a McAfee account along with installing the setup.
Visit- mcafee.com/activate
mcafee.com/activate
norton.com/setup
norton.com/setup
mcafee.com/activate