How can I get a free copy of Windows 10?
This can be accomplished in a variety of ways. I quickly figured out how to use batch files. You simply need to make an a.bat file and run it as an administrator. Then you restart your computer, and bam-bada-boom, you're done.
I'll show you how to install and activate Windows 10 without using an activation key. It's so simple, though, that even a kindergartener could accomplish it.
  1. Open Notepad.
  2. Paste the code provided below.
  3. Save the file as a .bat file.
  4. Run the file as administrator.
  5. Restart your PC.
@echo off
title Activate Windows 10 for FREE! TechiePaw.com&cls&echo ============================================================================&echo #Project: Activating All Verions of Windows 10 for FREE using CMD (TechiePaw.com)&echo ============================================================================&echo.&echo #Supported products:&echo - Windows 10 Home&echo - Windows 10 Home N&echo - Windows 10 Home Single Language&echo - Windows 10 Home Country Specific&echo - Windows 10 Professional&echo - Windows 10 Professional N&echo - Windows 10 Education N&echo - Windows 10 Education N&echo - Windows 10 Enterprise&echo - Windows 10 Enterprise N&echo - Windows 10 Enterprise LTSB&echo - Windows 10 Enterprise LTSB N&echo.&echo.&echo ============================================================================&echo Activating your Windows...&cscript //nologo slmgr.vbs /upk >nul&cscript //nologo slmgr.vbs /cpky >nul&wmic os | findstr /I "enterprise" >nul
if %errorlevel% EQU 0 (cscript //nologo slmgr.vbs /ipk NPPR9-FWDCX-D2C8J-H872K-2YT43 >nul&cscript //nologo slmgr.vbs /ipk DPH2V-TTNVB-4X9Q3-TJR4H-KHJW4 >nul&cscript //nologo slmgr.vbs /ipk WNMTR-4C88C-JK8YV-HQ7T2-76DF9 >nul&cscript //nologo slmgr.vbs /ipk 2F77B-TNFGY-69QQF-B8YKP-D69TJ >nul&cscript //nologo slmgr.vbs /ipk DCPHK-NFMTC-H88MJ-PFHPY-QJ4BJ >nul&cscript //nologo slmgr.vbs /ipk QFFDN-GRT3P-VKWWX-X7T3R-8B639 >nul) else wmic os | findstr /I "10 pro" >nul
if %errorlevel% EQU 0 (cscript //nologo slmgr.vbs /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX >nul&cscript //nologo slmgr.vbs /ipk MH37W-N47XK-V7XM9-C7227-GCQG9 >nul) else wmic os | findstr /I "home" >nul
if %errorlevel% EQU 0 (cscript //nologo slmgr.vbs /ipk TX9XD-98N7V-6WMQ6-BX7FG-H8Q99 >nul&cscript //nologo slmgr.vbs /ipk 3KHY7-WNT83-DGQKR-F7HPR-844BM >nul&cscript //nologo slmgr.vbs /ipk 7HNRX-D7KGG-3K4RQ-4WPJ4-YTDFH >nul&cscript //nologo slmgr.vbs /ipk PVMJN-6DFY6-9CCP6-7BKTT-D3WVR >nul) else (echo.)
set i=1
:server
if %i%==1 set KMS_Sev=kms7.MSGuides.com
if %i%==2 set KMS_Sev=kms8.MSGuides.com
if %i%==3 set KMS_Sev=kms9.MSGuides.com
if %i%==4 goto notsupported
cscript //nologo slmgr.vbs /skms %KMS_Sev% >nul&echo ============================================================================&echo.&echo.
cscript //nologo slmgr.vbs /ato | find /i "successfully" && (echo.&echo ============================================================================&echo.&echo Site: TechiePaw.com&echo.&echo #How it works: bit.ly/kms-server&echo.&echo.&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 "https://techiepaw.com/activate-windows-10"&goto halt
:notsupported
echo ============================================================================&echo.&echo Sorry! Your version is not supported.&echo.
:halt
pause >nul


Here’s the step-by-step tutorial

Now you must meticulously follow the procedures. You don't have to be concerned; it's dead simple! 
Open Notepad and paste the code.
Windows 10 Activation Code, Windows 10 activation .bat file
I've included the code you'll need to copy and paste into Notepad. This code will take you no more than 30 seconds to copy and paste.

Save the file as a .BAT life.
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The most important step is to save the file as a.bat. Make sure to choose All Files as the Save As type and add.bat to the end of your preferred name.
I went with TechiePaw.bat, but you may go with whatever you want.
Run the .bat file as administrator.
Run .bat file as admin in Windows 10
Another crucial step is to run the file as an administrator. If you don't do this, the Command Prompt is likely to generate problems when processing the codes. As a result, double-check that you've run this as an administrator.
Your computer should be restarted.
Windows 10 Activated without key, activate windows 10 without key, activate windows 10 with CMD, windows 10 activated .bat file
You must wait for around 10-15 seconds. You'll know it's finished when you see the notification asking you to restart your computer. Simply hit Enter after typing Y.
You will no longer see the unpleasant activate Windows watermark after restarting your PC. You may use this method to activate Windows 10 without a key.