: You remain legally compliant and have a valid license for the modern OS when you eventually migrate.
Numerous third-party websites still list "genuine" keys for Windows Server 2008 R2 at low prices. Windows Server end of support and Microsoft 365 Apps
If you still need to acquire a key, you generally have two paths: 1. Official Licensing (Downgrade Rights)
: Contact a Microsoft licensing specialist at 1-800-426-9400 or visit the Volume Licensing Service Center to discuss your options. 2. Third-Party "Grey Market" Sellers
: You purchase a license for a modern, supported version like Windows Server 2022 and use the included rights to install an older version.