I note all of my simple conda command in this repo. Make this simple for understand beginner user. This basic command help you for change enviroment, how to use it
conda create --name envname
conda activate envname
conda info --envs
conda deactivate
conda env remove --name <environment_name>
Just use prefix than path where you wanna create environment
conda create --prefix "D:\envname"
conda activate "D:\envname"