-Go to the official website mcafee.com/activate.
-Now, select the “My Account” option.
-And then, select the “Sign In” option from the “My Account” drop-down menu.
-On the Sign in page, type the email address and the password of the McAfee account in the corresponding fields.
-Now, click the “Sign In” button.
-In the McAfee account, go the “Subscriptions” section and select the McAfee antivirus subscribed by the users.
-Now, click the “Add Device” button displayed in front of the selected McAfee product.
-The “Add Device” page will appear on the screen. Here, select the “Type of Device” on which the users want to install the subscribed McAfee antivirus product.
-After this, click the “Download” button that is displayed at the bottom of the page.
-After the product gets successfully downloaded to the device, follow the on-screen instruction to install and McAfee activate antivirus subscription to the device.