mcafee.com/activate

Besides renewing old software, you can also upgrade to a new plan. From your McAfee account, select a product and choose a plan. Complete the billing and you will receive a new activation to the registered email address.

While you upgrade from one product to another, say from McAfee LiveSafe to McAfee Total protection, you will need to uninstall the older version. It is necessary to remove the software you will no longer use, this eliminates the case of software conflicts. Another important thing is to follow the right process.