Tried to
conda install -c conda-forge requests-futures=0.9.7
but failed with
conda is not recognized as an internal or external command,
C:\Users\user_name\Anaconda3\Scripts has been set for Path in environment variables under both user and System variables.
I installed Python 3.5 as well and it is on Path, I am using Win10 X64.
How to fix the issue?
There is a similar question asked here before, check this may be it will help you.
To make sure that conda package is installed correctly, check if conda package files , i.e conda conda-env conda-env-script conda-script conda-server conda-server-script etc are present in Anaconda3\Scripts folder.
When you install anaconda on windows now, it doesn't automatically add Python or Conda to your path.
If you don’t know where your conda and/or python is, you type the following commands into your anaconda prompt
Next, you can add Python and Conda to your path by using the setx command in your command prompt.
Next close that command prompt and open a new one. Congrats you can now use conda and python
Source: https://medium.com/@GalarnykMichael/install-python-on-windows-anaconda-c63c7c3d1444
Just Check Both the options while installing Anaconda.
来源：https://stackoverflow.com/questions/44488349/windows-10-conda-is-not-recognized-as-an-internal-or-external-command