[javascript] 'react-scripts' is not recognized as an internal or external command

This is how I fix it

  1. Check and Update the path variable (See below on how to update the path variable)
  2. Delete node_modules and package-lock.json
  3. run npm install
  4. run npm run start

if this didn't work, try to install the nodejs and run repair

or clean npm cache npm cache clean --force

To update the path variable

  1. press windows key
  2. Search for Edit the system environmental variable
  3. Click on Environment Variables...
  4. on System variable bottom section ( there will be two section )
  5. Select Path variable name
  6. Click Edit..
  7. Check if there is C:\Program Files\nodejs on the list, if not add this

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