$ nvm install 14.19.3
Downloading node.js version 14.19.3 (64-bit)...
Complete
Downloading npm version 6.14.17... Download failed. Rolling Back.
Rollback failed. remove G:\nvm\temp\npm-v6.14.17.zip: The process cannot access the file because it is being used by another process.
Could not download npm for node v14.19.3.
Please visit https://github.com/npm/cli/releases/tag/v6.14.17 to download npm.
It should be extracted to G:\nvm\v14.19.3
推测，以上提示是该node版本对应的npm安装失败，更换其他版本就可以成功了。 目前测试下来，14.19.3，14.19.2版本都安装失败了。14.19.1可以。
