Installing Auto-Sklearn on Windows gives error

There are many topics in Stackoverflow on AutoSklearn errors.

but each error is different and each environment is different

I have windows 10 64-bit

I installed Anaconda3

When I try to follow these steps

https://automl.github.io/auto-sklearn/stable/installation.html

Step 1 :

curl https://raw.githubusercontent.com/automl/auto-sklearn/master/requirements.txt | xargs -n 1 -L 1 pip install

I get this error

'xargs' is not recognized as an internal or external command,
operable program or batch file.

How to fix that?

When I try the 2nd step

pip install auto-sklearn

ValueError: Detected unsupported operating system: win32. Please check the compability information of auto-sklearn: http://automl.github.io/auto-sklearn/stable/installation.html#windows-osx-compability

which i think it is due to the step 1 fail.

anyone can help me fixing this error?