If you still need to acquire a key, you generally have two paths: 1. Official Licensing (Downgrade Rights)
: You remain legally compliant and have a valid license for the modern OS when you eventually migrate. buy windows 2008 r2 product key
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,
Official sales for Windows Server 2008 R2 product keys have ended as the product reached its end of life on January 14, 2020 . Microsoft no longer sells this version directly or provides security updates for it. Windows Server end of support and Microsoft 365
: You purchase a license for a modern, supported version like Windows Server 2022 and use the included rights to install an older version.