I used node.js to install some things via npm without any problems. Now I changed nothing on my settings (Win8; no proxy, internet is working) and I can\'t install anything
I had the same issue while installing the expo-cli in Windows 8.1, but it resolved after i have followed the below steps.
run below command in your command prompt.
npm config edit
.npmrc file will open in your default editor.
Now remove the lines having proxy, https-proxy, registery and save that file.
After that i was able to install the expo-cli package without the proxy issue.