Fail to install extensions without errors output or visual studio code cannot install extensions are annoying issue that we'll try to fix today
So you have two options to fix this issue, which looks like a DNS issue ( I believe).
Ubuntu is my OS, so that's what I'll use for now and later I'll upload windows version.
Option 1: Google Public DNS ( Which i do recommend)
https://developers.google.com/speed/p...
or jump directly to
https://developers.google.com/speed/p...
Option 2: Cloudflare and APNIC DNS ( Which i use for now - alongside with Firefox Developer Edition which is built in)
https://1.1.1.1/dns/