Here’s a way you can download it straight from ansible project.
On your windows machine, logged in as Adminstrator, start powershell and then run the following command
wget https://github.com/ansible/ansible/blob/devel/examples/scripts/ConfigureRemotingForAnsible.ps1 -OutputFile .\ConfigureRemotingForAnsible.ps1
Then you can run the powershell script.
.\ConfigureRemotingForAnsible.ps1
The above might not work on older versions of windows but I think should work ok if you have powershell version 3 or newer.
Hope this helps,
Jon