Microsoft Official Public KMS Client Keys (GVLK)

Microsoft provides KMS client keys for Volume Licensing customers to activate Windows and Office products via a KMS server.
These keys are public and do not pose copyright issues, but they must be used with a KMS service to activate.

If you have confirmed your system is a VL (Volume Licensing) version, you can view Microsoft's official keys via the link below:

Click to visit → Microsoft Official KMS Client Key Page

How to Activate Using a KMS Key

  1. Confirm that your system or Office is a Volume Licensing (VL) version.
  2. Install the public GVLK key (or keep the original installation key).
  3. Set the KMS server address, e.g.: slmgr /skms kms.illi.io
  4. Run the activation command: slmgr /ato

Common Key Examples (GVLK)

Windows Keys
  • Win 10 Pro：W269N-WFGWX-YVC9B-4J6C9-T83GX
  • Win 10 Enterprise：NPPR9-FWDCX-D2C8J-H872K-2YT43
  • Server 2022 Standard：VDYBN-27WPP-V4HQT-9VMD4-VMK7H
  • Server 2019 Datacenter：WMDGN-G9PQG-XVVXX-R3X43-63DFG
Office Keys
  • Office 2021 Pro Plus：FXYTK-NJ8BC-GB6DW-3DYQT-6F7TH
  • Office 2019 Pro Plus：NMMKJ-6RK4F-KMJVX-8D9MJ-6MWKP
  • Office 2016 Pro Plus：XQNVK-8JYDB-WJ9W3-YJ8YR-WFG99
  • Project 2019 Standard：C4F7P-NCP8C-6CQPT-MQHV9-JXD2M
Full Command to Activate Windows 11 Pro 
slmgr /upk
slmgr /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX
slmgr /skms kms.illi.io
slmgr /ato

Tip: Make sure you are connected to the internet and not blocked by a firewall/antivirus.