I installed the latest version of Anaconda. Now I want to install OpenCV within it. When I type:
conda install -c https://conda.binstar.org/anaconda opencv <
In Windows 10, I went to the folder where Anaconda is stored. In my case it is in \Anaconda3 folder as a shortcut to open a command prompt window, called "Anaconda Prompt". Open that and execute the command there.