By default, the Windows 7 and Windows Server 2008 R2 operating systems use KMS for activation. In volume installations, the setup key is installed by default, which makes the system a KMS client. If you are converting a computer from a KMS host, MAK, or retail edition of Windows to a KMS client, install the applicable setup key (GVLK) from Table below using slmgr /ipk <setup key>.

 

Platform Operating system edition Product key
Windows 7 and Windows Server 2008 R2
Client Windows 7 Professional FJ82H-XT6CR-J8D7P-XQJJ2-GPDD4
Client Windows 7 Professional N MRPKT-YTG23-K7D7T-X2JMM-QY7MG
Client Windows 7 Professional E W82YF-2Q76Y-63HXB-FGJG9-GF7QX
Client Windows 7 Enterprise 33PXH-7Y6KF-2VJC9-XBBR8-HVTHH
Client Windows 7 Enterprise N YDRBP-3D83W-TY26F-D46B2-XCKRJ
Client Windows 7 Enterprise E C29WB-22CC8-VJ326-GHFJW-H9DH4
Server Windows Server 2008 R2 Web 6TPJF-RBVHG-WBW2R-86QPH-6RTM4
Server Windows Server 2008 R2 HPC edition TT8MH-CG224-D3D7Q-498W2-9QCTX
Server Windows Server 2008 R2 Standard YC6KT-GKW9T-YTKYR-T4X34-R7VHC
Server Windows Server 2008 R2 Enterprise 489J6-VHDMP-X63PK-3K798-CPX3Y
Server Windows Server 2008 R2 Datacenter 74YFP-3QFB3-KQT8W-PMXWJ-7M648
Server Windows Server 2008 R2 for Itanium-based Systems GT63C-RJFQ3-4GMB6-BRFB9-CB83V
Windows Vista and Windows Server 2008
Client Windows Vista Business YFKBB-PQJJV-G996G-VWGXY-2V3X8
Client Windows Vista Business N HMBQG-8H2RH-C77VX-27R82-VMQBT
Client Windows Vista Enterprise VKK3X-68KWM-X2YGT-QR4M6-4BWMV
Client Windows Vista Enterprise N VTC42-BM838-43QHV-84HX6-XJXKV
Server Windows Web Server 2008 WYR28-R7TFJ-3X2YQ-YCY4H-M249D
Server Windows Server 2008 Standard TM24T-X9RMF-VWXK6-X8JC9-BFGM2
Server Windows Server 2008 Standard without Hyper-V W7VD6-7JFBR-RX26B-YKQ3Y-6FFFJ
Server Windows Server 2008 Enterprise YQGMW-MPWTJ-34KDK-48M3W-X4Q6V
Server Windows Server 2008 Enterprise without Hyper-V 39BXF-X8Q23-P2WWT-38T2F-G3FPG
Server Windows Server 2008 HPC RCTX3-KWVHP-BR6TB-RB6DM-6X7HP
Server Windows Server 2008 Datacenter 7M67G-PC374-GR742-YH8V4-TCBY3
Server Windows Server 2008 Datacenter without Hyper-V 22XQ2-VRXRG-P8D42-K34TD-G3QQC
Server Windows Server 2008 for Itanium-Based Systems 4DWFP-JF3DJ-B7DTH-78FJB-PDRHK

 

All of the above info is available and can be openly found in the Microsoft | TechNet Library