scoop is necessary
You can manage multiple versions of PHP on same machine with scoop, if you don't install it, check this guide: scoop

Install NVM

scoop install nvm

Check all versions

nvm list available

Install the last LTS

nvm install 18.15.0

Use new version

nvm use 18.15.0

Error npm update

When you try to update npm

npm i -g npm

You will have this error

npm ERR! code EEXIST
npm ERR! path C:\Users\user\scoop\apps\nvm\current\nodejs\nodejs\npm.cmd
npm ERR! Refusing to delete C:\Users\user\scoop\apps\nvm\current\nodejs\nodejs\npm.cmd: is outside C:\Users\user\scoop\apps\nvm\current\nodejs\nodejs\node_modules\npm and not a link
npm ERR! File exists: C:\Users\user\scoop\apps\nvm\current\nodejs\nodejs\npm.cmd
npm ERR! Remove the existing file and try again, or run npm
npm ERR! with --force to overwrite files recklessly.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\user\AppData\Roaming\npm-cache\_logs\2021-08-16T07_54_44_449Z-debug.log

To get latest NPM version from

cd C:\Users\USERNAME\scoop\apps\nvm\current\nodejs\v14.18.0
cd %APPDATA%\nvm\v14.18.0

Rename current npm cli

mv npm npm-old
mv npm.cmd npm-old.cmd
mv npx npx-old
mv npx.cmd npx-old.cmd

Find current CLI

cd node_modules\
mv npm npm-old
cd npm-old\bin

Install new NPM version

node npm-cli.js i -g npm@latest