• URL: https://nodejs.org/en/download/
• Browser version: Chrome v90
• Operating system: Windows 10 Pro 21H1 64 bit

I had node v12 and npm v6.9.2 & wanted to upgrade node to v14.

I tried 2 options:

• just ran the installer and hoping it would upgrade the npm, didn't work
• uninstalled node and hoping it's fresh installation for node v14 with npm v6.14.x, didn't work

output:

• npm version was still v6.9.2 which didn't support node v14 and asked to run npm rebuild something
• googled and found not working solution which is run npm install -g npm
  both have deadlock output, current npm doesn't support node v14 hence can't run both commands

what I had to do manually for fresh installation:

• uninstall previous node.js
• go to C:\Users\Username\AppData\Roaming and delete manually npm & npm-cache folder
• run the msi 14.17.0 again, then it works