I was using Pycharm in windows and when I tried to check my project interpreter and clicked install packaging tools, something happened wrong.

The error turned out:
error:[WinError 32] The process cannot access the file because it is being used by another process: 'c:\users\Username\anaconda3\lib\site-packages\setuptools-39.1.0-py3.6.egg'
I followed some tutorial online to upgrade my pip and setuptools, pip is now 10.0 and setuptools 47.1.1, but every time I open the settings, all the way same and the 'setuptools-39.1.0-py3.6.egg' keeps showing up even I delete it each time.
I was running under python 3.7, Pycharm 2018.03, Anaconda 5.4. Thanks for help!
