Unable to start node-red in Windows 10

I got issue on node-red in windows 10. It just exited without starting web portal. Any clue?

C:\Users\hsieh>node -v
v14.15.1

C:\Users\hsieh>npm -v
6.14.8

C:\Users\hsieh>node-red
4 Dec 22:57:29 - [info]

Welcome to Node-RED

4 Dec 22:57:29 - [info] Node-RED version: v1.2.6
4 Dec 22:57:29 - [info] Node.js version: v14.15.1
4 Dec 22:57:29 - [info] Windows_NT 10.0.18363 x64 LE
4 Dec 22:57:30 - [info] Loading palette nodes
4 Dec 22:57:32 - [info] +-----------------------------------------------------
4 Dec 22:57:32 - [info] | uibuilder initialised:
4 Dec 22:57:32 - [info] | root folder: \Users\hsieh.node-red\uibuilder
4 Dec 22:57:32 - [info] | version . .: 2.0.7
4 Dec 22:57:32 - [info] | packages . : vue,bootstrap,bootstrap-vue,socket.io
4 Dec 22:57:32 - [info] +-----------------------------------------------------
4 Dec 22:57:32 - [info] Dashboard version 2.19.4 started at /ui

C:\Users\hsieh>

How did you install it and how are you running it?