Very simple powershell script to activate Windows 10.
First, go to where you saved the zip file and extract it. Then open Powershell as administrator and set the execution policy to Bypass
if not set already so you can execute the script.
Set-ExecutionPolicy ByPass -Scope CurrentUser
Now change the directory to where you extracted the file and execute the script with .\winactivator.ps1
.
cd C:\Users\youruser\path-to-file\
.\winactivator.ps1
And now everything else should be done automatically.