KMS client activation and product keys

To use Key Management Services (KMS), you need to have a KMS host available on your local network. Computers that activate with a KMS host need to have a specific product key. This key is sometimes referred to as the KMS client key, but it’s formally known as a Microsoft Generic Volume License Key (GVLK). Computers that are running volume licensing editions of Windows Server and Windows client are, by default, KMS clients with no extra configuration needed as the relevant GVLK is already there.

There are some scenarios where you’ll need to add the GVLK to the computer you wish to activate against a KMS host, such as:

• Converting a computer from using a Multiple Activation Key (MAK)
• Converting a retail license of Windows to a KMS client
• If the computer was previously a KMS host

To use the GVLKs listed, you need a KMS host on your local network. If you don’t have one, you can learn how to create a KMS host.

The KMS host requires its own key, known as the KMS host key, to activate or authenticate with Microsoft. This key is available in the Microsoft 365 admin center for Open, Open Value, Select, Enterprise, and Services Provider License agreements. You can get help from the local Microsoft Activation Center.

When you activate Windows or Windows Server with a KMS host, the keys provided here are intended for volume licensing scenarios and can’t be used with retail editions. KMS client keys won’t activate or serve as a retail license key. If you installed a retail copy of Windows, you must use another activation method, like a MAK or by purchasing a genuine retail license. To learn more, see:

• Activate Windows.
• Windows Server pricing and licensing.

Install a product key

If you’re converting a computer from a KMS host, MAK, or retail edition of Windows to a KMS client, install the applicable product key (GVLK) from the list in this article. To install a client product key, open an administrative command prompt on the client, and run the following command and then press Enter:

slmgr /ipk

For example, to install the product key for Windows Server 2022 Datacenter Edition, run the following command and then press Enter:

slmgr /ipk WX4NM-KYWYW-QJJR4-XV3QB-6VM33 

Generic Volume License Keys

In the tables that follow, you’ll find the GVLKs for each version and edition of Windows. LTSC is Long-Term Servicing Channel, while LTSB is Long-Term Servicing Branch.

Windows 11 and Windows 10 Semi-Annual Channel

See the Windows lifecycle fact sheet for information about supported versions and end of service dates.

Operating system edition	KMS Client Product Key
Windows 11 Pro Windows 10 Pro	W269N-WFGWX-YVC9B-4J6C9-T83GX
Windows 11 Pro N Windows 10 Pro N	MH37W-N47XK-V7XM9-C7227-GCQG9
Windows 11 Pro for Workstations Windows 10 Pro for Workstations	NRG8B-VKK3Q-CXVCJ-9G2XF-6Q84J
Windows 11 Pro for Workstations N Windows 10 Pro for Workstations N	9FNHH-K3HBT-3W4TD-6383H-6XYWF
Windows 11 Pro Education Windows 10 Pro Education	6TP4R-GNPTD-KYYHQ-7B7DP-J447Y
Windows 11 Pro Education N Windows 10 Pro Education N	YVWGF-BXNMC-HTQYQ-CPQ99-66QFC
Windows 11 Education Windows 10 Education	NW6C2-QMPVW-D7KKK-3GKT6-VCFB2
Windows 11 Education N Windows 10 Education N	2WH4N-8QGBV-H22JP-CT43Q-MDWWJ
Windows 11 Enterprise Windows 10 Enterprise	NPPR9-FWDCX-D2C8J-H872K-2YT43
Windows 11 Enterprise N Windows 10 Enterprise N	DPH2V-TTNVB-4X9Q3-TJR4H-KHJW4
Windows 11 Enterprise G Windows 10 Enterprise G	YYVX9-NTFWV-6MDM3-9PT4T-4M68B
Windows 11 Enterprise G N Windows 10 Enterprise G N	44RPN-FTY23-9VTTB-MP9BX-T84FV

Windows Enterprise LTSC and LTSB

• Windows 11 LTSC 2024
  Windows 10 LTSC 2021, 2019
• Windows IoT LTSC
• Windows 10 LTSB 2016
• Windows 10 LTSB 2015

Operating system edition	KMS Client Product Key
Windows 11 Enterprise LTSC 2024 Windows 10 Enterprise LTSC 2021 Windows 10 Enterprise LTSC 2019	M7XTQ-FN8P6-TTKYV-9D4CC-J462D
Windows 11 Enterprise N LTSC 2024 Windows 10 Enterprise N LTSC 2021 Windows 10 Enterprise N LTSC 2019	92NFX-8DJQP-P6BBQ-THF9C-7CG2H

Operating system edition	KMS Client Product Key
Windows IoT Enterprise LTSC 2024 Windows IoT Enterprise LTSC 2021	KBN8V-HFGQ4-MGXVD-347P6-PDQGT

Operating system edition	KMS Client Product Key
Windows 10 Enterprise LTSB 2016	DCPHK-NFMTC-H88MJ-PFHPY-QJ4BJ
Windows 10 Enterprise N LTSB 2016	QFFDN-GRT3P-VKWWX-X7T3R-8B639

Operating system edition	KMS Client Product Key
Windows 10 Enterprise LTSB 2015	WNMTR-4C88C-JK8YV-HQ7T2-76DF9
Windows 10 Enterprise N LTSB 2015	2F77B-TNFGY-69QQF-B8YKP-D69TJ

Earlier versions of Windows Client

Operating system edition	KMS Client Product Key
Windows 8.1 Pro	GCRJD-8NW9H-F2CDX-CCM8D-9D6T9
Windows 8.1 Pro N	HMCNV-VVBFX-7HMBH-CTY9B-B4FXY
Windows 8.1 Enterprise	MHF9N-XY6XB-WVXMC-BTDCT-MKKG7
Windows 8.1 Enterprise N	TT4HM-HN7YT-62K67-RGRQJ-JFFXW

Operating system edition	KMS Client Product Key
Windows 8 Pro	NG4HW-VH26C-733KW-K6F98-J8CK4
Windows 8 Pro N	XCVCF-2NXM9-723PB-MHCB7-2RYQQ
Windows 8 Enterprise	32JNW-9KQ84-P47T8-D8GGY-CWCK7
Windows 8 Enterprise N	JMNMF-RHW7P-DMY6X-RF3DR-X2BQT

Operating system edition	KMS Client Product Key
Windows 7 Professional	FJ82H-XT6CR-J8D7P-XQJJ2-GPDD4
Windows 7 Professional N	MRPKT-YTG23-K7D7T-X2JMM-QY7MG
Windows 7 Professional E	W82YF-2Q76Y-63HXB-FGJG9-GF7QX
Windows 7 Enterprise	33PXH-7Y6KF-2VJC9-XBBR8-HVTHH
Windows 7 Enterprise N	YDRBP-3D83W-TY26F-D46B2-XCKRJ
Windows 7 Enterprise E	C29WB-22CC8-VJ326-GHFJW-H9DH4

Operating system edition	KMS Client Product Key
Windows Vista Business	YFKBB-PQJJV-G996G-VWGXY-2V3X8
Windows Vista Business N	HMBQG-8H2RH-C77VX-27R82-VMQBT
Windows Vista Enterprise	VKK3X-68KWM-X2YGT-QR4M6-4BWMV
Windows Vista Enterprise N	VTC42-BM838-43QHV-84HX6-XJXKV

Windows Server LTSC

• Windows Server 2025
• Windows Server 2022
• Windows Server 2019
• Windows Server 2016

Operating system edition	KMS Client Product Key
Windows Server 2025 Standard	TVRH6-WHNXV-R9WG3-9XRFY-MY832
Windows Server 2025 Datacenter	D764K-2NDRG-47T6Q-P8T8W-YP6DF
Windows Server 2025 Datacenter: Azure Edition	XGN3F-F394H-FD2MY-PP6FD-8MCRC

Operating system edition	KMS Client Product Key
Windows Server 2022 Standard	VDYBN-27WPP-V4HQT-9VMD4-VMK7H
Windows Server 2022 Datacenter	WX4NM-KYWYW-QJJR4-XV3QB-6VM33
Windows Server 2022 Datacenter: Azure Edition	NTBV8-9K7Q8-V27C6-M2BTV-KHMXV

Operating system edition	KMS Client Product Key
Windows Server 2019 Standard	N69G4-B89J2-4G8F4-WWYCC-J464C
Windows Server 2019 Datacenter	WMDGN-G9PQG-XVVXX-R3X43-63DFG
Windows Server 2019 Essentials	WVDHN-86M7X-466P6-VHXV7-YY726

Operating system edition	KMS Client Product Key
Windows Server 2016 Standard	WC2BQ-8NRM3-FDDYY-2BFGV-KHKQY
Windows Server 2016 Datacenter	CB7KF-BWN84-R7R2Y-793K2-8XDDG
Windows Server 2016 Essentials	JCKRF-N37P4-C2D82-9YXRT-4M63B

Windows Server Semi-Annual Channel

Windows Server, versions 20H2, 2004, 1909, 1903, and 1809

Operating system edition	KMS Client Product Key
Windows Server Standard	N2KJX-J94YW-TQVFB-DG9YT-724CC
Windows Server Datacenter	6NMRW-2C8FM-D24W7-TQWMY-CWH2D

Windows Server, version 20H2 reached end of service on August 9, 2022 and is no longer receiving security updates. This includes the retirement of Windows Server Semi-Annual Channel (SAC) with no future releases.

Customers using Windows Server SAC should move to Azure Stack HCI. Alternatively, customers might use the Long-Term Servicing Channel of Windows Server.

Earlier versions of Windows Server

• Windows Server, version 1803
• Windows Server, version 1709
• Windows Server 2012 R2
• Windows Server 2012
• Windows Server 2008 R2
• Windows Server 2008

Operating system edition	KMS Client Product Key
Windows Server Standard	PTXN8-JFHJM-4WC78-MPCBR-9W4KR
Windows Server Datacenter	2HXDN-KRXHB-GPYC7-YCKFJ-7FVDG

Operating system edition	KMS Client Product Key
Windows Server Standard	DPCNP-XQFKJ-BJF7R-FRC8D-GF6G4
Windows Server Datacenter	6Y6KB-N82V8-D8CQV-23MJW-BWTG6

Operating system edition	KMS Client Product Key
Windows Server 2012 R2 Standard	D2N9P-3P6X9-2R39C-7RTCD-MDVJX
Windows Server 2012 R2 Datacenter	W3GGN-FT8W3-Y4M27-J84CP-Q3VJ9
Windows Server 2012 R2 Essentials	KNC87-3J2TX-XB4WP-VCPJV-M4FWM

Operating system edition	KMS Client Product Key
Windows Server 2012	BN3D2-R7TKB-3YPBD-8DRP2-27GG4
Windows Server 2012 N	8N2M2-HWPGY-7PGT9-HGDD8-GVGGY
Windows Server 2012 Single Language	2WN2H-YGCQR-KFX6K-CD6TF-84YXQ
Windows Server 2012 Country Specific	4K36P-JN4VD-GDC6V-KDT89-DYFKP
Windows Server 2012 Standard	XC9B7-NBPP2-83J2H-RHMBY-92BT4
Windows Server 2012 MultiPoint Standard	HM7DN-YVMH3-46JC3-XYTG7-CYQJJ
Windows Server 2012 MultiPoint Premium	XNH6W-2V9GX-RGJ4K-Y8X6F-QGJ2G
Windows Server 2012 Datacenter	48HP8-DN98B-MYWDG-T2DCC-8W83P
Windows Server 2012 Essentials	HTDQM-NBMMG-KGYDT-2DTKT-J2MPV

Operating system edition	KMS Client Product Key
Windows Server 2008 R2 Web	6TPJF-RBVHG-WBW2R-86QPH-6RTM4
Windows Server 2008 R2 HPC edition	TT8MH-CG224-D3D7Q-498W2-9QCTX
Windows Server 2008 R2 Standard	YC6KT-GKW9T-YTKYR-T4X34-R7VHC
Windows Server 2008 R2 Enterprise	489J6-VHDMP-X63PK-3K798-CPX3Y
Windows Server 2008 R2 Datacenter	74YFP-3QFB3-KQT8W-PMXWJ-7M648
Windows Server 2008 R2 for Itanium-based Systems	GT63C-RJFQ3-4GMB6-BRFB9-CB83V

Operating system edition	KMS Client Product Key
Windows Web Server 2008	WYR28-R7TFJ-3X2YQ-YCY4H-M249D
Windows Server 2008 Standard	TM24T-X9RMF-VWXK6-X8JC9-BFGM2
Windows Server 2008 Standard without Hyper-V	W7VD6-7JFBR-RX26B-YKQ3Y-6FFFJ
Windows Server 2008 Enterprise	YQGMW-MPWTJ-34KDK-48M3W-X4Q6V
Windows Server 2008 Enterprise without Hyper-V	39BXF-X8Q23-P2WWT-38T2F-G3FPG
Windows Server 2008 HPC	RCTX3-KWVHP-BR6TB-RB6DM-6X7HP
Windows Server 2008 Datacenter	7M67G-PC374-GR742-YH8V4-TCBY3
Windows Server 2008 Datacenter without Hyper-V	22XQ2-VRXRG-P8D42-K34TD-G3QQC
Windows Server 2008 for Itanium-Based Systems	4DWFP-JF3DJ-B7DTH-78FJB-PDRHK

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