To protect a computer with multiple operating systems, we recommend you install and activate Malwarebytes Premium on each system. Each operating system you protect with Malwarebytes Premium is treated as a separate device.
To see how many devices you can protect with Malwarebytes Premium, refer to the article Number of devices Premium subscription license protects . If you need to protect more devices with Malwarebytes Premium, you can purchase additional licenses from the Malwarebytes store.