Activate Windows 8, 8.1 & windows 10 without any Third party software

Step 1: Download the batch file from the links :

            i) Windows 8 & 8.1 all version

            ii) Windows 10 all version

Step 2: Run the file. Run it as Administrator

It will be processing as per speed of your PC

Step 3: It will be activated. Press Y

It will exit automatically

Note: If you guys see three times the same error message saying that the connection to KMS server was unsuccessful, please read this post.