Home > About Licensing > Briefs > OS License Requirements
This licensing brief provides an explanation of Microsoft operating system license requirements for initial operating systems, the transfer of licenses, and the reassignment of licenses.
This brief replaces a previous version published in March 2008.
Significant changes in this new version include the new Volume Activation 2.0 section.
Operating System License Requirements: Initial Operating System and Transfer of License (PDF, 652 KB)
Was this information useful?
E-mail this page
Thanks for responding. Your feedback helps us improve the site.
Find answers to the most common Microsoft product licensing inquiries from customers like you.
Locate use rights, points by program, and special notes for individual products and supporting documents related to Volume Licensing.
Review this scenario-based guide to help you understand how Microsoft licensing models apply to common IT solutions.
Get activation instructions including which products require a key.