When you install a Windows hệ thống operating system, the product key – also known as a KMS (Key Management Service) key – may not be installed correctly. In such cases, the operating system has been installed with a 120-day trial key. Once this time period elapses, the operating system can no longer be used.

This guide will show you how khổng lồ change the product key for your Windows hệ thống environment.


A Windows SPLA licence in your vietmac.com.vncloud accountAdministrative access to lớn your hệ thống via remote desktop connection


Uninstall the mặc định product key

When your operating system is in trial mode, a default product key is installed. To lớn modify it, mở cửa the Run dialogue box (Windows key + R):



In this box, enter the following command:

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Install the new hàng hóa key

You can now install the new hàng hóa key. To vị so, go back to lớn the Run box, & enter the following command:

Below is a danh sách of the sản phẩm keys available for each operating system:

Operating systemProduct key
Windows hệ thống 2008 StandardTM24T-X9RMF-VWXK6-X8JC9-BFGM2
Windows hệ thống 2008 EnterpriseYQGMW-MPWTJ-34KDK-48M3W-X4Q6V
Windows server 2008 Datacenter7M67G-PC374-GR742-YH8V4-TCBY3
Windows hệ thống 2008 R2 StandardYC6KT-GKW9T-YTKYR-T4X34-R7VHC
Windows server 2008 R2 Enterprise489J6-VHDMP-X63PK-3K798-CPX3Y
Windows vps 2008 R2 Datacenter74YFP-3QFB3-KQT8W-PMXWJ-7M648
Windows vps 2012 StandardXC9B7-NBPP2-83J2H-RHMBY-92BT4
Windows vps 2012 Datacenter48HP8-DN98B-MYWDG-T2DCC-8W83P
Windows hệ thống 2012 R2 StandardD2N9P-3P6X9-2R39C-7RTCD-MDVJX
Windows vps 2012 R2 DatacenterW3GGN-FT8W3-Y4M27-J84CP-Q3VJ9
Windows 8.1 ProfessionalGCRJD-8NW9H-F2CDX-CCM8D-9D6T9
Windows Server năm nhâm thìn DatacenterCB7KF-BWN84-R7R2Y-793K2-8XDDG
Windows Server năm nhâm thìn StandardWC2BQ-8NRM3-FDDYY-2BFGV-KHKQY
Windows Server năm 2016 EssentialsJCKRF-N37P4-C2D82-9YXRT-4M63B
Windows vps 2019 StandardN69G4-B89J2-4G8F4-WWYCC-J464C
Windows hệ thống 2019 DatacenterWMDGN-G9PQG-XVVXX-R3X43-63DFG

Source: Microsoft

Go to lớn kms.vietmac.com.vn.net

To associate your key with our automated activation system, enter the command below in the Run dialogue box:

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Activate the system

Lastly, lớn activate your Windows operating system, simply enter the command below:

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