In the top right corner of the Dashboard, click Activate Subscription.
If you haven't set up your My Account login, see Create and manage your Malwarebytes Account. This method requires you to have an active Malwarebytes account login. There are two ways to activate your subscription. If you purchased a subscription for multiple devices, find instructions on how to install and activate on different devices here: Install & activate Malwarebytes personal products. Your Malwarebytes for Windows version 4 subscription allows you to activate Premium features such as Real-Time Protection and Scheduled Scans.