May I use Adobe Acrobat XI Standard on a dual-boot system and do I need a license for both partitions?

In this scenario you are required to purchase a separate license for both partitions.

Source: Adobe website, retrieved February 2017 (https://helpx.adobe.com/x-productkb/policy-pricing/end-user-license-agreements-faq.html#main_Can_I_use_my_software_on_both_partitions_of_a_dual_boot_system_)