TimescaleDB Windows installer pg_config path

Hi I just started to use TimescaleDB and got problem at the very first step with the installer - after running the windows installer, it tells me ‘will use pg_conf found at: C:Users\Administrator\anaconda3\Library\bin\pg_config.exe’
clearly it is not the correct path… I have added pg_config’s path as system environmental variable, but TimescaleDB Installer still use the one in anaconda folder… Anyone could give me some suggestions please?