title: Pip not working in base conda environment
body: <p>I have a conda installation which was working perfectly fine, until I created a new virtual environment using venv.Now pip wont work.</p>
  <p>In base conda environment:</p>
  <pre><code>(base) D:\ML Projects&gt;pip --version
  Script file 'D:\ProgramData\Anaconda3\Scripts\pip-script.py' is not present.
  </code></pre>
  <p>In a virtual environment :</p>
  <pre><code>(base) D:\ML Projects&gt;pytorch\Scripts\activate
  
  (pytorch) (base) D:\ML Projects&gt;pip --version
  pip 20.1.1 from d:\ml projects\pytorch\lib\site-packages\pip (python 3.7)
  
  (pytorch) (base) D:\ML Projects&gt;
  </code></pre>
  <p>These are the things that i have tried:</p>
  <ol>
  <li>Tried reinstalling pip using conda:</li>
  </ol>
  <pre><code>(base) C:\Users\Me&gt;conda install pip
  Collecting package metadata (current_repodata.json): done
  Solving environment: done
  
  # All requested packages already installed.
  
  </code></pre>
  <ol start="2">
  <li>upgrdaing using pip(Gives different responses):</li>
  </ol>
  <p>Response1:</p>
  <pre><code>WARNING: Ignoring invalid distribution -ip (d:\programdata\anaconda3\lib\site-packages)
  WARNING: Ignoring invalid distribution - (d:\programdata\anaconda3\lib\site-packages)
  WARNING: Ignoring invalid distribution -ip (d:\programdata\anaconda3\lib\site-packages)
  WARNING: Ignoring invalid distribution - (d:\programdata\anaconda3\lib\site-packages)
  Requirement already satisfied: pip in d:\programdata\anaconda3\lib\site-packages (21.1.1)
  Collecting pip
    Using cached pip-21.1.2-py3-none-any.whl (1.5 MB)
  WARNING: Ignoring invalid distribution -ip (d:\programdata\anaconda3\lib\site-packages)
  WARNING: Ignoring invalid distribution - (d:\programdata\anaconda3\lib\site-packages)
  Installing collected packages: pip
    Attempting uninstall: pip
      WARNING: Ignoring invalid distribution -ip (d:\programdata\anaconda3\lib\site-packages)
      WARNING: Ignoring invalid distribution - (d:\programdata\anaconda3\lib\site-packages)
      Found existing installation: pip 21.1.1
      Uninstalling pip-21.1.1:
  ERROR: Could not install packages due to an OSError: [WinError 5] Access is denied: 'd:\\programdata\\anaconda3\\scripts\\pip.exe'
  Consider using the `--user` option or check the permissions.
  
  WARNING: Ignoring invalid distribution -ip (d:\programdata\anaconda3\lib\site-packages)
  WARNING: Ignoring invalid distribution - (d:\programdata\anaconda3\lib\site-packages)
  WARNING: Ignoring invalid distribution -ip (d:\programdata\anaconda3\lib\site-packages)
  WARNING: Ignoring invalid distribution - (d:\programdata\anaconda3\lib\site-packages)
  WARNING: Ignoring invalid distribution -ip (d:\programdata\anaconda3\lib\site-packages)
  WARNING: Ignoring invalid distribution - (d:\programdata\anaconda3\lib\site-packages)
  </code></pre>
  <p>Respnse2:</p>
  <pre><code>(base) C:\Users\Me&gt;pip install --upgrade pip --user
  Script file 'D:\ProgramData\Anaconda3\Scripts\pip-script.py' is not present.
  </code></pre>
  <p>Also, Have i broken my installation? If yes, is there any way to fix it?</p>