Legal way to use Office 365 totally FREE, without paying a dime

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In a previous post here, I have shown you guys how to download and install Office 365 Multilanguage using online installer downloaded directly from the Microsoft homepage. By default, the new installation includes a 30-day free trial license. After that, most important features will be disabled. It means your work will be discontinued unless you pay for Office 365 subscription. If you are in financial difficulties, this is so bad, I know. To help you overcome this problem, I recommend using KMS licene key to activate your Office. For those of you guys who don’t already know, KMS license is almost similar to the trial one. It is totally free, legal and is valid for 180 days only. But don’t worry about the period because it can be renewed easily.

Ok! The introduction is over. Now let’s get started!

Remove your current trial license

This step is optional if your trial license was expired. However, if it is still valid, you need to remove it. Because in some cases, after you activate your Office using KMS license, important features are resumed but the expiration notification still remains. Please follow instructions in this post to uninstall the trial license.

Make sure your computer is ready

You need to check your internet connection again and make sure that the Windows Update service is turned on. KMS license has to be verified by making a connection to my KMS server before it can be used. So you need to check if the KMS server is blocked or not. This is pretty simple. Just open your internet browser and try visitting this site: If it is visible, this means the server is not blocked.

Activating your Office 365 using KMS client key

Step 1: Copy the code below into new text document.

@echo off
title Activate Office 365 ProPlus for FREE - ============================================================================&echo #Project: Activating Microsoft software products for FREE without software&echo ============================================================================&echo.&echo #Supported products: Office 365 ProPlus (x86-x64)&echo.&echo.&(if exist "%ProgramFiles%\Microsoft Office\Office16\ospp.vbs" cd /d "%ProgramFiles%\Microsoft Office\Office16")&(if exist "%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs" cd /d "%ProgramFiles(x86)%\Microsoft Office\Office16")&(for /f %%x in ('dir /b ..\root\Licenses16\proplusvl_kms*.xrm-ms') do cscript ospp.vbs /inslic:"..\root\Licenses16\%%x" >nul)&(for /f %%x in ('dir /b ..\root\Licenses16\proplusvl_mak*.xrm-ms') do cscript ospp.vbs /inslic:"..\root\Licenses16\%%x" >nul)&echo.&echo ============================================================================&echo Activating your Office...&cscript //nologo slmgr.vbs /ckms >nul&cscript //nologo ospp.vbs /setprt:1688 >nul&cscript //nologo ospp.vbs /unpkey:WFG99 >nul&cscript //nologo ospp.vbs /unpkey:6MWKP >nul&cscript //nologo ospp.vbs /unpkey:DRTFM >nul&cscript //nologo ospp.vbs /unpkey:BTDRB >nul&cscript //nologo ospp.vbs /inpkey:NMMKJ-6RK4F-KMJVX-8D9MJ-6MWKP >nul&set i=1
if %i%==1 set
if %i%==2 set
if %i%==3 set
if %i%==4 goto notsupported
cscript //nologo ospp.vbs /sethst:%KMS_Sev% >nul&echo ============================================================================&echo.&echo.
cscript //nologo ospp.vbs /act | find /i "successful" && (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 Please try installing the latest version here:
pause >nul

create a new text file

Step 2: Save it as a batch file. (eg. office365.cmd)

save this text file as a batch fileset this batch file name is "office365.cmd"

Step 3: Run the batch file with admin rights. (important!)

run the "office365.cmd" file with administrator rights

Done! Your Office is activated successfully.

product activation successful


– I only test this method with Office 365 ProPlus version. I am not sure it will work with the others.

– Step 3 is flagged “important” because the UAC system will stop this process if you don’t do it.

How to renew your Office 365 license

By default, your license will be renewed automaticaly every seven days but in some cases, it can be stuck. So you need to renew the license manually. Just follow instructions here.

Legal way to use Office 365 totally FREE, without paying a dime
4.4 (55 vote[s])

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!

For faster support, please visit here for troubleshooting. Need more help? Please email me at

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327 thoughts on “Legal way to use Office 365 totally FREE, without paying a dime

  1. Jooho

    love you man,

    i did it activated.

    i m searching the way to activate the new version of Micro office. it perfectly worked.

    please keep supporting for the next version of it. thank you so much 🙂

    from Korea.

        1. kWong

          Admin Id must have all right, don’t use admin Id with modify right.

          Create an Admin ID without modify any right, and run the batch file online with admin right again.

  2. RAJAh

    an u find a solution to activate dynamics 365 on premise.currently it requires to login with genuine office email with trail period of 90 days along with online connection to microsoft site.

  3. Christabel

    when the app is asking you to input the email address associated with the account which mail is needed? …after installing office365

  4. Primal51

    Any thoughts on getting this to work with 365 Business. I’ve uninstalled 365 Business and tried to install ProPlus but Business keeps installing and activating with this tool. Then activation fails after launching / closing apps a few times even though I’m not signed into my old O365 Business Account any longer