Follow these steps in order to claim your Windscribe VPN

Download the client for Windows here:
https://windscribe.com/install/desktop/windows

Select "No" when asked if you have an account, create a new account instead.

Select "use for Free" and then "have a voucher"

the voucher is: 50GBFREE
activate this voucher before Nov 28th

Now you can enjoy 50GB of free VPN traffic