Windows Server 2008 R2 Sp1 Pre-activated En-us Oct 2013 [exclusive] -

The "Pre-Activated" label indicates that the operating system comes with an activated license, eliminating the need for manual activation.

While these "pre-activated" versions were a staple for home labs and gray-market servers, they carried significant risks: Windows Server End of Life - Lansweeper Windows Server 2008 R2 SP1 Pre-Activated En-US Oct 2013