I DIDN'T WANT WINDOWS 10

  You can uninstall it!!!!

As long as you do this within 31 days:

To access the uninstall option:

Open the Start menu and select Settings.

Click the “Update & security” icon and select “Recovery.”

You should see a “Go back to Windows 7” or “Go back to Windows 8.1” option.

Click the Get started button to get rid of your Windows 10 install and restore your previous Windows install.

Microsoft will ask you why you want to go back - just tell them!!!