How do I completely uninstall Node.js, and reinstall

On Ubuntu:

1. Uninstall:
   bash

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   sudo apt-get remove --purge nodejs npm
sudo apt-get autoremove
sudo apt-get autoclean

2. Delete remaining files:
   bash

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   sudo rm -rf /usr/local/lib/node_modules /usr/local/bin/node /usr/local/bin/npm ~/.npm

3. Reinstall:
   bash

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   curl -fsSL https://deb.nodesource.com/setup_lts.x | sudo -E bash -
sudo apt-get install -y nodejs

4. Verify:
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   node -v
npm -v


On Windows:

1. Uninstall:
   • Go to Control Panel > Programs > Programs and Features.
   • Right-click Node.js and select Uninstall.
2. Delete remaining files:
   • Delete Node.js folders in C:\Program Files\nodejs and C:\Users\YourName\AppData\Roaming\npm.
3. Reinstall:
   • Download and run the installer from Node.js website.
4. Verify: Open Command Prompt or PowerShell and run:
   bash

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   node -v
npm -v