However, it is suggested that one should keep auto-renewal enabled to avoid any risk with your PC protection. But a lot of time we want to decide on ourselves whether we want to continue with McAfee subscription or not. This is when you can choose to disable Auto-renewal of the subscription.
If McAfee automatically gets renewed then it deducts the amount for the subscription automatically. But the user does receive an email about the same on their registered email ID at least 15 days before renewal. Thus, at that time you can decide on whether you want to continue with the subscription or not.