Activating all versions of Windows Server without a product key

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As you know, Windows Server is a specialized operating system which is designed for servers. In today’s post, I will show you how to activate Windows in your VPS or dedicated server for FREE using KMS client product key. Although the KMS license is valid for 180 days only but there is no limit on the number of activation. So you can renew it whenever you want. Actually, the license will be renewed automatically every 7 days by default (almost similar to Let’s Encrypt certificate). In this way, just do it one time and forget it completely.

Note: If you are a student, an office worker or any standard user who is using desktop edition of Windows, just skip this post and please do not follow the instructions. I will not be responsible for any damage caused by you.

Supported products:

– Windows Server, version 1809, 1803, 1709

– Windows Server 2019/2016

– Windows Server 2008/2012 (R2)

As you can see in the image above, I am using Windows Server 2016 Standard and it is not activated.

Method 1: Manually installing KMS client key and activating it.

Step 1. Get the right product key from the official article of Microsoft.

The KMS Client Setup Key of WS 2016 Standard is “WC2BQ-8NRM3-FDDYY-2BFGV-KHKQY”. I will use it in the next step.

Step 2. Install the key on your server.

To open command prompt, right-click on the Windows button then select “Command prompt (Admin)” line.

Then, enter “slmgr /ipk CLIENTKEY” in the command window.

Note: each command is followed by hitting Enter.

Step 3. Set the KMS server.

Enter “slmgr /skms” in the window.

Step 4. Activate the KMS client key.

Finally, use the command “/ato” to activate your Windows.

Method 2: Using a pre-written batch file.

Step 1. Copy all the text below into a text file.

@echo off
title Activate Windows Server (ALL versions) for FREE!&cls&echo ============================================================================&echo #Project: Activating Microsoft software products for FREE without software&echo ============================================================================&echo.&echo #Supported products:&echo ============================================================================&echo Activating your Windows...&cscript //nologo slmgr.vbs /ckms >nul&cscript //nologo slmgr.vbs /upk >nul&cscript //nologo slmgr.vbs /cpky >nul&set i=1
cscript //nologo slmgr.vbs /ipk 4DWFP-JF3DJ-B7DTH-78FJB-PDRHK >nul&cscript //nologo slmgr.vbs /ipk 22XQ2-VRXRG-P8D42-K34TD-G3QQC >nul&cscript //nologo slmgr.vbs /ipk 7M67G-PC374-GR742-YH8V4-TCBY3 >nul&cscript //nologo slmgr.vbs /ipk RCTX3-KWVHP-BR6TB-RB6DM-6X7HP >nul&cscript //nologo slmgr.vbs /ipk 39BXF-X8Q23-P2WWT-38T2F-G3FPG >nul&cscript //nologo slmgr.vbs /ipk YQGMW-MPWTJ-34KDK-48M3W-X4Q6V >nul&cscript //nologo slmgr.vbs /ipk W7VD6-7JFBR-RX26B-YKQ3Y-6FFFJ >nul&cscript //nologo slmgr.vbs /ipk TM24T-X9RMF-VWXK6-X8JC9-BFGM2 >nul&cscript //nologo slmgr.vbs /ipk WYR28-R7TFJ-3X2YQ-YCY4H-M249D >nul&cscript //nologo slmgr.vbs /ipk GT63C-RJFQ3-4GMB6-BRFB9-CB83V >nul&cscript //nologo slmgr.vbs /ipk 74YFP-3QFB3-KQT8W-PMXWJ-7M648 >nul&cscript //nologo slmgr.vbs /ipk 489J6-VHDMP-X63PK-3K798-CPX3Y >nul&cscript //nologo slmgr.vbs /ipk YC6KT-GKW9T-YTKYR-T4X34-R7VHC >nul&cscript //nologo slmgr.vbs /ipk TT8MH-CG224-D3D7Q-498W2-9QCTX >nul&cscript //nologo slmgr.vbs /ipk 6TPJF-RBVHG-WBW2R-86QPH-6RTM4 >nul&cscript //nologo slmgr.vbs /ipk 48HP8-DN98B-MYWDG-T2DCC-8W83P >nul&cscript //nologo slmgr.vbs /ipk XNH6W-2V9GX-RGJ4K-Y8X6F-QGJ2G >nul&cscript //nologo slmgr.vbs /ipk HM7DN-YVMH3-46JC3-XYTG7-CYQJJ >nul&cscript //nologo slmgr.vbs /ipk XC9B7-NBPP2-83J2H-RHMBY-92BT4 >nul&cscript //nologo slmgr.vbs /ipk 4K36P-JN4VD-GDC6V-KDT89-DYFKP >nul&cscript //nologo slmgr.vbs /ipk 2WN2H-YGCQR-KFX6K-CD6TF-84YXQ >nul&cscript //nologo slmgr.vbs /ipk 8N2M2-HWPGY-7PGT9-HGDD8-GVGGY >nul&cscript //nologo slmgr.vbs /ipk BN3D2-R7TKB-3YPBD-8DRP2-27GG4 >nul&cscript //nologo slmgr.vbs /ipk KNC87-3J2TX-XB4WP-VCPJV-M4FWM >nul&cscript //nologo slmgr.vbs /ipk W3GGN-FT8W3-Y4M27-J84CP-Q3VJ9 >nul&cscript //nologo slmgr.vbs /ipk D2N9P-3P6X9-2R39C-7RTCD-MDVJX >nul&cscript //nologo slmgr.vbs /ipk JCKRF-N37P4-C2D82-9YXRT-4M63B >nul&cscript //nologo slmgr.vbs /ipk WC2BQ-8NRM3-FDDYY-2BFGV-KHKQY >nul&cscript //nologo slmgr.vbs /ipk CB7KF-BWN84-R7R2Y-793K2-8XDDG >nul&cscript //nologo slmgr.vbs /ipk WVDHN-86M7X-466P6-VHXV7-YY726 >nul&cscript //nologo slmgr.vbs /ipk N69G4-B89J2-4G8F4-WWYCC-J464C >nul&cscript //nologo slmgr.vbs /ipk WMDGN-G9PQG-XVVXX-R3X43-63DFG >nul&cscript //nologo slmgr.vbs /ipk DPCNP-XQFKJ-BJF7R-FRC8D-GF6G4 >nul&cscript //nologo slmgr.vbs /ipk 6Y6KB-N82V8-D8CQV-23MJW-BWTG6 >nul&cscript //nologo slmgr.vbs /ipk PTXN8-JFHJM-4WC78-MPCBR-9W4KR >nul&cscript //nologo slmgr.vbs /ipk 2HXDN-KRXHB-GPYC7-YCKFJ-7FVDG >nul&cscript //nologo slmgr.vbs /ipk N2KJX-J94YW-TQVFB-DG9YT-724CC >nul&cscript //nologo slmgr.vbs /ipk 6NMRW-2C8FM-D24W7-TQWMY-CWH2D >nul
if %i%==1 set
if %i%==2 set
if %i%==3 set
if %i%==4 goto notsupported
cscript //nologo slmgr.vbs /skms %KMS_Sev%:1688 >nul&echo ============================================================================&echo.&echo.
cscript //nologo slmgr.vbs /ato | find /i "successfully" && (echo.&echo ============================================================================&echo.&echo #My official blog: #How it works: #Please feel free to contact me at if you have any questions or concerns.&echo.&echo #Please consider supporting this project: #Your support is helping me keep my servers running everyday!&echo.&echo ============================================================================&choice /n /c YN /m "Would you like to visit my blog [Y,N]?" & if errorlevel 2 exit) || (echo The connection to my KMS server failed! Trying to connect to another one... & echo Please wait... & echo. & echo. & set /a i+=1 & goto server)
explorer ""&goto halt
echo ============================================================================&echo.&echo Sorry! Your version is not supported.&echo.
pause >nul

Step 2. Save the text file as a batch file with .cmd extension. (Eg run.cmd)

Step 3. Run the batch file with admin rights.

Finally, check activation status of your server again.

Activating all versions of Windows Server without a product key
5 (3 votes)

If you would have any questions or concerns, please leave your comments. I would be glad to explain in more details. Thank you so much for all your feedback and support!

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7 thoughts on “Activating all versions of Windows Server without a product key

    1. kWong

      Run the batch file with admin ID without restriction online, otherwise won’t work.

      Where did you get windows server iso file?

      Please be noted that Windows Server Evaluations versions are not supported because they have been attached 180-day trial license.