As you can see from the error message the paths, that you specified, are
wrong. Try it like this:
activate .... empvenv est
However, when I needed to install Anaconda, I downloaded it from here and installed
it to the default paths (
C:Anaconda), than I put this path to
the environment variables, so now Anacondas interpreter is used as default.
If you are using PyCharm, for example, you can specify the interpreter