https://www.microsoft.com/en-us/licensing/existing-customer/activation-centers.aspx


Tools and Resources for Existing Volume Licensing customers:
https://www.microsoft.com/en-us/Licensing/existing-customer/existing-customers.aspx



Deploy Windows Enterprise licenses:

https://learn.microsoft.com/en-us/windows/deployment/deploy-enterprise-licenses


Guide to Licensing resources for Microsoft:

https://learn.microsoft.com/en-us/partner-center/support-resources-licensing


https://www.microsoft.com/en-us/licensing/existing-customer/vlsc-training-and-resources?activetab=vlsc-tab:primaryr3


Open Value Program:

https://www.microsoft.com/en-us/licensing/licensing-programs/open-license?SilentAuth=1&wa=wsignin1.0&activetab=open-license-tab:primaryr3