I am using selenium with python and have downloaded the chromedriver for my windows computer from this site: http://chromedriver.storage.googleapis.com/index.html?path=2.15/
We have to add path string, begin with the letter r before the string, for raw string. I tested this way, and it works.
r
driver = webdriver.Chrome(r"C:/Users/michael/Downloads/chromedriver_win32/chromedriver.exe")