title: How to uninstall node from WSL?
body: <p>I have installed nodejs using npm on WSL2. The node version is 16.2.0.
  I browsed StackOverflow on how to delete and upgrade or downgrade node on Windows and Linux but never have any answer on WSL.</p>
  <p>Tried:</p>
  <pre><code>npm install -g node@10.19.0
  </code></pre>
  <p>An error message of the command says:</p>
  <pre><code>File exists: /home/blold/.nvm/versions/node/v16.2.0/bin/node
  Remove the existing file and try again,
  Use --force option with command to downgrade the node. 
  </code></pre>
  <ol>
  <li><p>Tried to go to <code>/home/blold/.nvm/versions/node/v16.2.0/bin/node</code> to delete existing files but it says it is not a directory. At least I should delete existing node files but how?</p>
  </li>
  <li><p>Using <code>--force</code> seems not a good solution for the question.</p>
  </li>
  </ol>
  <p>What should I do?</p>