"Hotmail.opk" is primarily identified as a highly sophisticated malware threat. Because files are traditionally associated with OEM Preinstallation Kits
: It enables the pre-installation of Windows operating systems and applications like Office 2016 or Outlook. Core Tools Windows PE (Preinstallation Environment) hotmail.opk
Assuming you are looking for a general report on the domain or a service related to Hotmail (which is now known as Outlook.com), here is some information: "Hotmail
as a successor to the traditional OPK for managing system images. support.microsoft.com Use Cases in System Deployment Mass Imaging hotmail.opk